A group of cells is assayed for dna content immediately before beginning mitosis and is found to have an average of 16 picograms of dna per nucleus. How many picograms of dna would be found in a cell nucleus following completion of mitosis and cytokinesis?.
Answers
After mitosis, the nuclei of two daughter cells contain the same amount of DNA as the mother nucleus.
Before cell division (mitosis) occurs, cells must duplicate their chromosomes so that each of the two daughter cells will have a complete copy. As a result, during mitosis, the amount of DNA in the cell nucleus duplicates. As a result, after mitosis and cytokinesis, two nuclei with the same amount of DNA as the original nucleus would be present. The average amount of DNA per nucleus in the original group of cells is 16 picograms, thus each daughter nucleus would contain 16 picograms of DNA.
When a group of cells is assayed for DNA content immediately before starting mitosis and is found to have an average of 16 picograms of DNA per nucleus, each daughter nucleus would contain 16 picograms of DNA after mitosis and cytokinesis.
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Related Questions
which two spicies are more closely related: humans and snakes or humans and lizards? how do you know?
Answers
Answer:
It's no A
It's not B
it's C
Explanation:
Humans and lizards
Is more closely to each other
6. Why is water useful to cells?
Answers
Please help will mark brainlest
The Sierra Nevadas are an example of a fault-block mountain range. Based on this information, which of the following processes formed the Sierra Nevadas?
Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.
Tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks.
One tectonic plate moved beneath another plate at a subduction zone, causing the rock to melt and rise above Earth's surface.
Segments of Earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes.
Answers
Answer:
2nd answer
Explanation:
took the test
As per the given scenario, tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks. The correct option is B.
What is tectonic movement?The mobility of the plates that end up making up the Earth's crust is referred to as tectonic shift. The Earth is composed of a dozen major plates and several minor plates.
According to the situation, tectonic movement pushed certain segments of the Earth's crust straight down and others upward in jagged chunks.
Thus, B is the correct answer.
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The image below shows a close-up of the crystals formed in a pegmatitic rock. Which characteristic provides the best evidence that is rock solidified deep underground?
low density
light color
very coarse texture
Answers
Answer:
Option C (very coarse texture) is the appropriate one.
Explanation:
Everything always cools quickly because once magma reinforces above that of the ocean floor and perhaps the shape it possesses seems to be agricultural context, color temperature, and so on. But as magma settles down underneath the layer, it gets sufficiently opportunity to solidify, culminating in a much more gritty texture as well as color change, respectively. We then assume that perhaps the assumption of whether concrete solidified buried underground correlates to a rather coarse framework.Other decisions aren't linked to the circumstance issued. So the one above is indeed the best one.
please help me with both of these:)
Answers
Answer:
Explanation:
how is the attraction between molecules of a solid and a gas different? answer - D
josh measured the temperature of a pond near his house before he left for school the water in the pond was 18c when he came home from school the temperature of the pond was higher than it was in the morning what happened to the water molecules while he was at school answer - As the temperature increases, B) the molecules started moving faster.
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A disorder of the digestive system that can cause severe dehydration is known as.
Answers
this would be called bulimia. This is a nervous disorder characterized by compulsive eating followed by vomiting and purging, can cause severe dehydration and even a ruptured stomach, and it can prove fatal.
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God bless you, stay safe and healthy!!!
Thank you
Answer: Bulimia
Explanation: a nervous disorder characterized by compulsive eating followed by vomiting and purging, can cause severe dehydration and even a ruptured stomach, and it can prove fatal.
According to functionalist sociology theory, deviance has ____ negative and positive consequences for society
A.neither B.boring C.excluding D.both THIS IS FOR SOCIOLOGY IGNORE WHAT I PUT AS SUBJECT
Answers
Answer:Deviance may be either positive or negative. Negative deviance involves behavior that fails to meet accepted norms. People expressing negative deviance either reject the norms, misinterpret the norms, or are unaware of the norms. Positive deviance involves overconformity to norms.
Explanation:
can outside factors affect how we grow?
Answers
Answer:
Yes, all outside factors can affect the way we grow and excel in life.
Examples of factors:
1) Influences by others or the internet
2) news
3) actions of others
4) society and community
I hope this helped :)
Which of the following organelles modifies and packages for secretion the materials produced by the ribosomes?
A-
The chloroplast
B-
The Golgi apparatus
C-
The nucleus
D-
The nucleolus
E-
The mitochondrion
Answers
Answer:
Golgi apparatus
Explanation:
Explain how D.N.A relates to inheritance
Answers
What Is DNA's Role in Inheritance? DNA is the genetic information used to make proteins, and it contains the hereditary traits of organisms. ... You are who you are because of your DNA; the smallest change to it would make you a completely different person.
Which is NOT a way that deletions can cause abnormal phenotypes?a. If the centromere is deleted, then the whole chromosome could be lost during cell division.b. Recessive mutations may be expressed if the wild-type allele is deleted, a phenomenon called pseudodominance.c. Haploinsufficient genes can result because too much gene product is produced.d. All of the above.
Answers
The option that does NOT describe a way deletions can cause abnormal phenotypes is c. Haploinsufficient genes can result because too much gene product is produced.
Haploinsufficiency occurs when a single functional copy of a gene is insufficient to maintain normal function, leading to abnormal phenotypes. In cases of deletions, haploinsufficiency is caused by the loss of a functional gene copy, resulting in insufficient gene product rather than too much.
On the other hand, options a and b accurately describe potential effects of deletions. Deletion of a centromere can lead to the loss of a whole chromosome during cell division, causing abnormal phenotypes. Similarly, pseudodominance occurs when the deletion of a wild-type allele results in the expression of a recessive mutation, which may also lead to abnormal phenotypes.
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differentiate Aspergilus fumigatus from other Aspergillus spp?
Answers
Aspergillus fumigatus is a species of Aspergillus that is differentiated from other Aspergillus species by its ability to produce a variety of mycotoxins and its ability to grow at higher temperatures.
It is also known for being the most common cause of aspergillosis, a group of fungal diseases caused by inhalation of Aspergillus spores. Other species of Aspergillus may have different growth patterns, produce different mycotoxins, and have varying levels of virulence, but Aspergillus fumigatus stands out as a particularly significant pathogen.
Aspergillus fumigatus is a species of fungus within the Aspergillus genus. The key differences between A. fumigatus and other Aspergillus species include its unique microscopic characteristics, growth temperature preferences, and potential health effects.
A. fumigatus produces smaller conidiophores and conidia compared to many other Aspergillus species. Additionally, it has a faster growth rate and prefers higher temperatures (optimal growth at 37°C), which makes it more adapted to the human body. This characteristic contributes to its potential to cause aspergillosis, a serious lung infection in immunocompromised individuals, which is less common in other Aspergillus species.
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Q3. Calculating the number of Lactobacillus in a 1-litre curd packet:
Your friend Ravi has been given a powerful microscope, 1 litre of curd packet and lots of distilled
water. Ravi was asked to think of a way to calculate the number of Lactobacillus bacteria present in
the curd packet. Ravi chose multiple methods and in the end, he was successful in calculating it.
Method 1: Ravi took 1 millilitre of curd and then he put it on a slide. He said that he will count the
number of bacteria in 1 millilitre and then he will multiply the count by 1000. He started to observe
the Lactobacillus. What is the problem that he will face in this method?
Method 2: Ravi took 0.1 millilitres of curd this time instead of one 1 millilitre. He said that he will
count the number of bacteria in 0.1 millilitres and then he will multiply the count by 10,000. He
started to observe the Lactobacillus. What is the problem that he will face in this method?
Method 3: Both of the above methods did not work. Ravi suddenly remembers that he has lots of
distilled water. This time Ravi took 0.1 millilitres of curd and mixed it in 10 litres of distilled water.
He then took 1 millilitre of the distilled water that was mixed with the curd. He could count the
number of bacteria in this 1 millilitre of a water drop. After this, he used simple maths to tell the
number of bacteria in 1 litre of curd. Why do you think that this method is better?
Answers
Method 1: The problem with this method is that the distribution of bacteria in the curd may not be uniform. Counting bacteria in just 1 milliliter and multiplying by 1000 assumes an equal distribution throughout the curd, which may not be accurate.
Method 2: In this method, the problem is that counting bacteria in only 0.1 milliliters and then extrapolating to the entire curd by multiplying by 10,000 assumes a uniform distribution of bacteria. However, the distribution may not be uniform, leading to inaccurate results.
Method 3: This method is better because it involves diluting the curd in a known amount of distilled water. By mixing a small amount of curd in a large volume of water, the bacteria are more evenly distributed.
Method 1: The problem Ravi will face in this method is that he assumes that the number of bacteria in the entire curd packet is uniform throughout. However, bacterial distribution within a curd packet may not be homogeneous.
The bacteria could be clumped or unevenly distributed, resulting in an inaccurate estimation of the total bacterial count. Extrapolating the count from 1 milliliter to 1 liter assumes that every milliliter of the curd has the same number of bacteria, which may not be true.
Method 2: In this method, Ravi takes a smaller sample size (0.1 milliliters) and multiplies the count by a larger factor (10,000) to estimate the total Lactobacillus bacterial count.
However, this approach assumes that the bacterial distribution is uniform, which may not be the case. The smaller sample size may not accurately represent the overall bacterial population, leading to an unreliable estimation.
Method 3: This method is better because it accounts for the non-uniform distribution of bacteria in the curd packet. By diluting a small sample of curd in a larger volume of distilled water (10 liters), Ravi ensures a more homogenous distribution of bacteria.
The subsequent counting of bacteria in 1 milliliter of the diluted solution provides a representative sample. By extrapolating the count, considering the dilution factor and the total volume (1 liter) of the curd, Ravi can calculate a more accurate estimation of the total number of Method 1: The problem with this method is that the distribution of bacteria in the curd may not be uniform. Counting bacteria in just 1 milliliter and multiplying by 1000 assumes an equal distribution throughout the curd, which may not be accurate.
Method 2: In this method, the problem is that counting bacteria in only 0.1 milliliters and then extrapolating to the entire curd by multiplying by 10,000 assumes a uniform distribution of bacteria. However, the distribution may not be uniform, leading to inaccurate results.
Method 3: This method is better because it involves diluting the curd in a known amount of distilled water. By mixing a small amount of curd in a large volume of water, the bacteria are more evenly distributed.
This method minimizes the error introduced by uneven distribution and provides a more reliable result.
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50 POINTS AND BRAINLEST!!!!!!!
What is the process by which living organisms convert energy from food into a form that can be used by the body's cells?
Answers
Answer:
Cellular respiration
Explanation:
Cellular respiration is the process by which the energy in food is converted into energy that can be used by the body's cells.
Answer: Cellular Respiration
Explanation:
The gradual decline in the sexual reproductive system of males is called ______. a. menopause b. andropause c. male menopause d. change of life.
Answers
The gradual decline in the sexual reproductive system of males is called andropause. This is also known as male menopause, but it is important to note that it is not the same as menopause in females.
Andropause is caused by a gradual decrease in testosterone levels in men as they age, typically starting in their 40s or 50s. This decline in testosterone can result in a variety of symptoms, including decreased sex drive, fatigue, depression, and difficulty achieving or maintaining an erection. While andropause is a natural part of the aging process, it is important for men to speak with their healthcare provider if they are experiencing symptoms that are affecting their quality of life.
Treatment options for andropause may include hormone replacement therapy, lifestyle changes such as exercise and diet, and medication to manage specific symptoms. It is important for men to prioritize their health and wellbeing as they age, and to speak with their healthcare provider if they have any concerns about their sexual or reproductive health.
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co-55 undergoes positron decay. what is the product nucleus?
Answers
Positron decay is a type of radioactive decay that involves the emission of a positron from a nucleus.
When an unstable nucleus undergoes positron decay, it emits a positron (a type of antiparticle with the same mass as an electron but a positive charge) and a neutrino. This results in the conversion of a proton into a neutron, thereby decreasing the atomic number by one.The product nucleus formed after the decay depends on the initial nucleus that underwent the decay. In the case of cobalt-55 (Co-55), which has an atomic number of 27 and a mass number of 55, it undergoes positron decay as follows:27Co55 → 26Fe55 + e+ + νeHere, Fe-55 (iron-55) is the product nucleus formed after Co-55 undergoes positron decay. The atomic number of the product nucleus is one less than that of the parent nucleus because a proton is converted into a neutron, and therefore the atomic number decreases by one. The mass number remains the same because the total number of nucleons (protons + neutrons) in the nucleus is conserved.
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How long does it take for a hippo to be fully grown?.
Answers
Answer: As long as it takes for my dad to go to the store, get milk and come back.
Explanation: He never came back
how does cell mitosis differ from cytokinesis
Answers
Answer:
Mitosis is the division of the nucleus, while cytokinesis is the division of the cytoplasm. They are both two stages in the cell cycle.
Explanation:
The structures in the bodies of many organisms have levels of organization that help the body to carry out life processes. Which list correctly shows how these levels are organized from the simplest to the most complex?a. cell b. tissuec. organd. organ system
Answers
Answer:
they're already organized
1_ cell
2_ tissue
3_ organ
4_ organ system
5_ organism
Question 14 (2 points) The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called natural selection. O mutation. genetic drift. migration.
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The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.
Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.
Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
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Suppose a scientist has collected data through a scientific investigation. How
could the scientist use the data to draw a conclusion?
A. By making inferences about possible explanations for the data
O B. By identifying the data that support the investigation's hypothesis
O C. By researching how the data compare with data from past studies
O D. By discarding unexpected data that could throw off the results
Answers
Suppose a scientist has collected data through a scientific investigation. How could the scientist use the data to draw a conclusion is: A. By making inferences about possible explanations for the data.
What is scientific investigation?
Scientific investigation can be defined as the process of collecting data or information by making use of different research techniques before reaching a conclusion.
The scientist can make use of the data to draw or reach a conclusion by making inferences about possible explanations for the data.
Therefore the correct option is A.
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Answer:
A. By making inferences about possible explanations for the data.
2. Cellular respiration does not produce____.
A glucose
B water
C carbon dioxide
D ATP
Answers
cellular respiration does not produce glucose
which part of the buffalo did the plains people turn into thread and strings for their bows?1) the sinew2) the horns3) the hides4) the stomach
Answers
The buffalo sinew was converted by the people of the plains into thread and bowstrings. Here option 1 is the correct answer.
Sinew is a strong, fibrous tissue found in the back and legs of animals, including buffalo, that connects muscle to bone. It is made up of long, collagen fibers that are naturally flexible, strong, and elastic, making it ideal for use as bowstring material.
The plains people harvested the sinew from buffalo and other animals, such as deer and elk, and treated it to make it durable and resistant to moisture.
They would scrape off the outer layer of the sinew, leaving behind the strong, white fibers, which they would then twist into strong and durable threads. These threads were used to make bowstrings, fishing lines, snares, and other equipment that required strength and durability.
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Mistletoe is a green plant that can make its own food, but also derives food from the mesquite tree on which it lives. In this way mistletoe is able to steal water and valuable minerals from the tree. 1. What is the advantage and disadvantage of this relationship to each organism? 2. What would happen to the mistletoe population if mesquite trees increase in number? 3. What type of symbiosis is this?
Answers
Answer:
1. Mistletoe is parasitic to the mesquite tree, it steals from the tree without giving anything valuable back to it. In this case, only the mistletoe gains an advantage.
2. If the mistletoe population on the tree were to increase, the mistletoe would probably end up slowly killing the tree. I say this because its a parasite to the tree. Its constantly stealing water and valuable minerals that it needs and doesnt give back anything that could help the tree. With all the water and minerals being stolen and an uneven rate with no way for the tree to replenish it all quickly enough it'll die.
3. Its parasitic since the mistletoe just takes and takes harmfully
Mistletoe plant is a parasite on the mesquite tree as it takes all the valuable minerals and water from the plant and does not give anything valuable in return to the mesquite tree.
What is Mistletoe plant?
Mistletoe plant is a parasite on the mesquite tree, it steals water from the tree without giving anything valuable back to it. In this case, only the mistletoe gains an advantage.
If the mistletoe population were to increase on the tree, the mistletoe plant would probably end up killing the mesquite tree. This is because it is a parasite to the tree. It is constantly stealing water and valuable minerals from the tree which it needs and doesn't give back anything valuable that could help the tree.
It is a parasite plant since the mistletoe plant just takes all the valuable minerals and water from the tree and thus is harmful.
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the disappearance of _________ junctions may occur when cancer cells metastasize.
Answers
The disappearance of tight junctions may occur when cancer cells metastasize.
What is Tight junction?Tight junctions are a type of cell-cell junction that helps to keep cells together and prevent the passage of molecules between them. When tight junctions are disrupted, it can allow cancer cells to escape from the original tumor and spread to other parts of the body.
Factors that can contribute to the disappearance of tight junctions, are:Changes in the expression of tight junction proteins: Cancer cells can sometimes change the expression of the proteins that make up tight junctions. This can weaken the junctions and make them more likely to break down.Invasion of the extracellular matrix: Cancer cells can also invade the extracellular matrix, which is the material that surrounds cells. This can damage tight junctions and make it easier for cancer cells to escape.Inflammation: Inflammation can also damage tight junctions. This is because inflammation can increase the production of enzymes that break down the proteins that make up tight junctions.The disappearance of tight junctions is a major step in the process of cancer metastasis. By breaking down the barriers that keep cells together, cancer cells can escape from the original tumor and spread to other parts of the body. This can make cancer much more difficult to treat.
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What are the ways that specialized cells group together? Select all that apply. Question 10 options: Organ systems combine to form an organism Organs with related functions group to form a differentiated cell Tissues with similar functions form an organ Cells with similar functions form a tissue.
Answers
Answer:
Organ systems combine to form an organism
Exhttps://brainly.com/question/26571513#:~:text=Tissues%20with%20similar-,functions%20form%20an%20organ%20Cells%20with%20similar%20functions%20form%20a%20tissue.,-Answer%3Aplanation:
What bone structure lines the medullary cavity of a long bone?
Answers
Endosteum is the bone structure that lines the medullary cavity of a long bone.
The medullary cavity is lined by a thin membrane called the endosteum (endo- = within). It has a thin layer of connective tissue and one layer of bone-forming cells. A long bone is one whose length exceeds its width. A long bone has two ends and a shaft. Long bones feature an inner medullary cavity containing bone marrow and a thick outer covering of solid bone.
Adults have a hollow, cylindrical region within the diaphysis called the medullary cavity, also known as the marrow cavity, which houses a large number of blood vessels and fatty yellow bone marrow. By removing dense bony tissue from the area of the bone that is least needed, this hollow reduces the weight of the bone. The tubular structure of the long bones offers greatest strength with minimal weight.
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Please help ASAP I need this answer, please!
Answers
Gly-leu-phe is changed to gly-tyr-phe would occur if a deletion is produced (option c).
What type of genetic mutation is a missense mutation?The type of genetic mutation is a missense mutation is a substitution change in all the open reading frame or orf of the nucleotide sequence, thereby altering all the downstream amino acids that will be encoded by using such a sequence, while in this case, we observed a change in the ORF due to a deletion.
Therefore, with this data, we can see that deletion does not proud a missense mutation because this last involves a substitution.
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What type of feedback occurs when you intensify a variable? a. Positive b. Negative c. Neutral
Answers
Answer:
B.
Explanation:
is it a, b, c, d ???
Answers
Answer:
I believe that it is D.
Explanation:
If ice caps are melting, and polar bears use the ice flows to get their food, then the polar bears can't use the ice to get food. so, the polar bears most likely are expanding their diets to adapt to their surroundings. So, polar bears are probably moving off the sea ice and eating other foods.