A error in DNA replication could be the cause of a spontaneous mutation. During mitosis and meiosis, mutations can also happen.
The amount of genetic material or DNA is only increased by mitosis and DNA replication. Both the daughter cells and the parental cell retain the same number of chromosomes. This keeps the cell's ploidy intact.
An induced mutation is a mutation that is brought on by a mutagen, or environmental element.
What results from a genetic mutation?
Such changes result in the synthesis of new proteins or the early termination of existing proteins. Synonymous mutations, in contrast to nonsynonymous mutations, do not alter an amino acid sequence, despite the fact that they are by definition limited to sequences that code for amino acids.
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Charles darwin suggested that atolls begin as coral reefs around volcanic islands. Will Surtsey island-icelands newest volcanic island ever become an atoll. Why or why not?
Answer:
No.
Explanation:
No, Surtsey island and Iceland newest volcanic island will not become an atoll because these islands have no underground volcanoes. The atolls are only occur when the volcanoes are present underwater and we know that these volcanoes are present on the lands not in the water so there is no possibility of having atolls in these Surtsey and Iceland volcanic islands
Why is the liver interesting?
The liver is interesting because it is a vital organ that performs a wide range of functions essential for the body's overall health and well-being.
The liver is the largest internal organ in the human body and is located in the upper right abdomen. It has numerous unique features that make it fascinating. Firstly, the liver is involved in various metabolic processes, including the production and breakdown of carbohydrates, proteins, and fats. It also detoxifies harmful substances and filters blood.
Additionally, the liver has the remarkable ability to regenerate itself, allowing it to recover from damage and continue its functions. Moreover, the liver plays a crucial role in the immune system and is involved in the synthesis of bile, which aids in digestion. Overall, the liver's multifunctionality and regenerative capabilities make it a truly remarkable organ.
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whats the order from biggest to smallest ecosystem,population,community,organism
Answer:
Ecosystem, community, population, Organism
Explanation:
Organism is a single species
Population is a group of the same species
Community is a group of different populations
Ecosystem is where communities live
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which zone of burn injury sustains the most damage?
The zone of stasis in the burn injury is an area that sustains the most damage.
When a burn injury occurs, it results in damage to three different zones that have different appearances and physiological changes. These zones are, from the center to the periphery, the zone of coagulation, the zone of stasis, and the zone of hyperemia. This differentiation is important because it aids in the identification of the degree of injury, as well as the appropriate clinical and surgical therapy.
The zone of stasis is an area around the site of injury that is not irreversibly damaged but is at risk of becoming necrotic. Due to the heat and toxins released, the microcirculation of blood is disrupted in the stasis zone. The stasis zone is at the greatest risk for further damage, and without intervention, it may develop into the coagulation zone.
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Which is true about fossils and rocks found in the same layer(strata)?
A.) They are made of the same minerals.
B.) They have the same color and texture.
C.) They are relatively the same age.
D.) None of the above.
Answer:
B.) They have the same color and texture.
You receive a sample slide of an organism. While observing it under a microscope, you notice that the organism is single-celled and green in color. There are multiple individual organisms on the slide. Based on this initial information, you guess that it is either a bacterium or a protist. Which trait is least likely to help you identify the correct group of this organism? (1 point)
Answer:
the presence of cell structures in the cell
Explanation:
If you do not know the reasoning behind this, you may want to read the explanation assignment the teacher adds, or do more research, look at notes, or pay attention during class :)
answer all for crown
The ability to taste PTC is due to a single dominant allele "T". You sampled 215 individuals in a biology class, and determined that f150 could detect the bitter taste of PTC and 65 could not.
What is the predicted frequency of the recessive allele (t)?
What is the predicted frequency of dominant allele (T)?
In a population of 10,000 people, how many would be heterozygous (assuming Hardy-Weinberg equilibrium)? Homozygous dominant? Homozygous recessive? Calculate all of the potential frequencies.
The genotypic and allelic frequencies of population in hardy-weinberg equilibrium remain the same through generations. f(T) = 0.453. f(t) = 0.547. Homozygous dominant individuals = 2050. Heterozygous individuals = 4950. Homozygous recessive individuals = 3000.
What is Hardy-Weinberg Equilibrium?The Hardy-Weinberg equilibrium is a theory that states that a population in equilibium is not evolving (no evolutive forces are acting on it) and its genic and genotypic frequencies remain the same generation after generation.
Assuming a diallelic gene,
⇒ The allelic frequencies in a locus are represented as p and q.
The frequency of the dominant allele p(X) is p The frequency of the recessive allele p(x) is q⇒ The genotypic frequencies after one generation are
p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).To calculate these frequencies, we can use the following formulas,
The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
1) N = 215 individuals
150 Individuals could taste PTC ⇒ TT and Tt
65 individuals could not ⇒ tt
To get the frequencies, we will divide the number of individuals expressing each phenotype by the total number of individuals.
Phenotypic frequencies
Capability to taste PTC ⇒ 150/215 = 0.697 ≅ 0.7
No capability to taste PTC ⇒ 65/215 = 0.302 ≅ 0.3
The phenotypic frequency of individuals who can not taste PTC (non-taster) is equal to the genotypic frequency -F(tt)-. We can use this value to get the allelic frequency -f(t)- by taking the square root.
F(tt) = q² = 0.3f(t) = q = √0.3 = 0.547Now we can get the dominant allele frequency -f(T)- by clearing the equation p + q = 1.
p + q = 1
p + 0.547 = 1
p = 1 - 0.547
p = 0.453
f(t) = 0.547f(T) = 0.453Now, by using these allelic frequencies, we can calculate the frequency of individuals TT, Tt, and tt.
F(TT) = p² = 0.453² = 0.205
F(Tt) = 2pq = 2 x 0.453 x 0.547 = 0.495
F(tt) = q²= 0.547²= 0.3
In a population of 10,000 people there will be,
Homozygous dominant individuals = 0.205 x 10,000 = 2050Heterozygous individuals = 0.495 x 10,000 = 4950Homozygous recessive individuals = 0.3 x 10,000 = 3000You can learn more about hardy-weinberg equilibrium at
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How does burning fossil fuels cause an increase of carbon in the air?
Answer:
The combustion of fossil fuels such as coal and oil has raised the concentration of carbon dioxide in the atmosphere during the last century (CO2). This occurs because the combustion of coal or oil produces CO2 by combining carbon in the air with oxygen.
Which combination of alleles is heterozygous for a carrier?
A. ee B. EE C. Ee
Answer:
C. Ee
Explanation:
Answer:
C - Ee
Explanation:
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3. an organism whose cells contain a nucleus and membrane bound organelles
Archaea
Fungi
Eukaryote
Protista
Answer:
Answer is C
Explanation: Please MARK brainiest
Eukaroyote
Answer:
Answer is eukaryote.
Explanation:
A eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes.
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Disaster-Risk-Reduction-in-the-Philippines-Status-Report-2019.
The Disaster Risk Reduction Status Report 2019 for the Philippines highlights the progress made by the country in minimizing risks and vulnerabilities associated with natural disasters.
The report emphasizes the government's efforts in improving early warning systems, disaster preparedness, and response measures, as well as the strengthening of institutional capacities to reduce the impact of disasters on the population.
The National Disaster Risk Reduction and Management Council (NDRRMC) and the United Nations Development Programme (UNDP) worked together to create the report with assistance from a number of governmental entities, local governments, civil society groups, and other stakeholders.
It also discusses the challenges faced by the country in achieving its DRR goals and provides recommendations for strengthening DRR efforts.
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When is the time you can consider a disease as congenital?
A disease can be considered congenital if it is present at or before birth and results from genetic factors, prenatal development, or environmental exposures that occur during pregnancy.
Also called birth defects, congenital anomalies or congenital malformations, these conditions develop prenatally and may be identified before or at birth, or later in life. Congenital diseases can also be inherited from parents who carry the genetic mutations that cause the disease. Examples of congenital diseases include Down syndrome, cystic fibrosis, and congenital heart defects. In some cases, congenital diseases may not become apparent until later in life, but they are still considered congenital because they were present from birth.
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As one ages, the presence of slow oxidative fibers ___.
As one age, the presence of slow oxidative fibers increases. They are associated with aging.
What are slow oxidative fibers?The slow oxidative fibers are muscle fibers that depend on aerobic respiration to produce muscle contractions.
Oxidative respiration refers to cellular respiration, which is fundamental during muscle contraction.
The number of slow oxidative fibers increases progressively and constantly with aging.
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A compound that can be converted into an active vitamin inside the body is known as a(n): a. Coenzyme b. Predecessor c. Enzyme d. Provitamin e. Antivitamin
A compound that can be converted into an active vitamin inside the body is known as a provitamin. That is option D.
Metabolism of Vitamins in the bodyThe vitamins are one of the micronutrients that are needed by the body which is metabolized and stored in the liver.
Although some vitamins such as vitamin D can be produced in the body, other vitamins such as vitamin B complex can be gotten from food sources.
These vitamins are found in both plant and animal sources in an inactive form called provitamin.
Examples of provitamin are
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I would like you to do some independent research about the star that you have chosen and summarize important characteristics.
1. What is the name of your star? What does its name mean? Are there other names for the star?
2. What is the surface temperature of the star and what color would it look like if viewed from Earth? 3. What is the luminosity (relative to the Sun) of the star? 4. Where does this star sit on the H-R diagram? You can draw a sketch of the diagram and place your star appropriately, or you can place it on a blank diagram, such as this one. This graph should be included with in your report. 5. Compare the star to our Sun. Is it similar? Dissimilar? In what ways?
6. Describe where the star is in its life cycle and its approximate age. For example, our Sun is in the middle of its life cycle as a main sequence star and it is approximately 4.6 billion years old. 7. How far away is your chosen star from Earth? 8. What is/are the one or two most important detail(s) or characteristic(s) about this star? Why? 9. How long it would take for someone from Earth to travel to this star. Explain your assumptions (how would the travel happen, how fast could the transporter travel?) and show all of your calculations.
The name of my star is the O-class stars. O-class stars named by spectral classification based on surface temperature and lines.O-type stars are really hot and really big stars.
2. O-class stars can get very, very hot - as hot as 60,000 degrees. Because they are very hot, they give off a lot of ultraviolet light. If you look at an O-type star from Earth, it will seem blue.
3. O-type stars are brighter than the Sun. They can be many, many more times brighter than the Sun. The amount of light a star gives off depends on the type of O-class star it is.
4, O-type stars are shown on the Hertzsprung-Russell (H-R) diagram in the top-left area, which represents high temperatures and brightness. They are big stars and still burning hydrogen in their center.
5. O-class stars are not the same as our Sun in many ways. They are much bigger, hotter, and heavier. These objects don't live as long as the Sun because they are heavier.
6. O-class stars are very young. They are really big stars that turn hydrogen into helium in their center through nuclear reactions.
7. The Big, bright stars called O-type stars are scattered throughout the Milky Way, which is the galaxy we live in. They are located at different distances from us.
8. O-class stars are really, really bright. These are very bright things in space that make everything around them bright too and affect how other stars behave.
9. The travel time to reach a star is about 31,548,444 seconds, which is about 526,474 minutes or 8,774 hours or 365 days.
What is the O-class starsNames are alphanumeric, e.g. O-type stars with a number/letter. O-class stars are hot with surface temperatures of 30,000 to 50,000 Kelvin. Bluish in color due to high temperature when viewed from Earth.
O-class stars are highly luminous, shining hundreds of thousands to millions of times brighter than the Sun. They emit vast amounts of energy, including UV radiation.
H-R Diagram: O-stars are at the upper-left. The H-R diagram shows star luminosity and surface temperature. O-stars are the hottest and most luminous, at the upper end of the diagram.
For example, lets us say that the star is 100 light-years away. The speed of light is about 299,792 kilometers per second. So, traveling at 10% the speed of light, the spacecraft would cover 29,979.2 kilometers per second.
To convert the distance to kilometers:
100 light-years * 9.461 × 10¹² kilometers per light-year
= 9.461 × 10¹⁴ kilometers.
Travel time = Distance / Speed
= (9.461 × 10¹⁴ kilometers) / (29,979.2 kilometers per second).
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How can you prevent oxygen toxicity?
What is DNA?
Byeeee, I'm leaving brainly, just giving points to those who need.
Answer:
deoxyribose nucleic acid
Answer:
Thx, for the free points!!! : ) Why are you leaving brainly tho?
Explanation:
The number of fatty acids chains present in a molecule of a
phospholipid is _
The molecule of phospholipid contains two fatty acid molecules linked to -OH groups and a nitrogen-containing base bound to the phosphate group.
Phospholipids are a class of lipids whose molecule has a hydrophilic head containing a phosphate group and two hydrophobic tails derived from fatty acids, joined by an alcohol residue.
Thus, it has a strongly non-polar and hydrophobic tail consisting of fatty acid chains and a polar and hydrophilic head comprising a negatively charged phosphate group and a positively charged base. Because of this dual solubility, the phospholipids are called AMPHIPHATIC lipids.
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Explain how the Zika virus spreads
Answer:
The Zika virus is transmitted to people mainly by the bite of an infected Aedes species mosquito (Ae. Aegypti and Ae. Albopictus). These mosquitoes are the same mosquitoes that spread dengue and chikungunya viruses.
Explanation:
I hope this answer has helped you
Answer:
Zika virus is transmitted to people primarily through the bite of an infected Aedes species mosquito (Ae. aegypti and Ae. albopictus). These are the same mosquitoes that spread dengue and chikungunya viruses.
Explanation:
Can i have brainliest plsJasmine and Marcus are at the park, and Jasmine makes the following statements. Which of them is an inference?
Answer:the plant is producing oxygen so c
Explanation:
A zebra migrates to join a different herd of zebras.
Competition for sunlight leads to taller trees.
The DNA of a snake changes to make its venom stronger.
A grassfire randomly sweeps through a population of buffalo and kills most of the animals.
The resulting effect on the gene pool would be the following:
A zebra migrates to join a different herd of zebras.; brings new alleles from other populationsCompetition for sunlight leads to taller trees.: favors certain allelesThe DNA of a snake changes to make its venom stronger:creates new alleles from DNAA grassfire randomly sweeps through a population of buffalo and kills most of the animals: randomly selects allelesWhat is an allele?An allele is a variant form of a gene that can exist at the same locus (position) on a chromosome. Genes control the traits we inherit from our parents, and alleles are responsible for the differences in those traits.
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Read each example and decide what the resulting effect on the gene pool of that population would be.
A zebra migrates to join a different herd of zebras.
Competition for sunlight leads to taller trees.
The DNA of a snake changes to make its venom stronger.
A grassfire randomly sweeps through a population of buffalo
and kills most of the animals.
Answer:The resulting effect on the gene pool would be the following:
A zebra migrates to join a different herd of zebras.; brings new alleles from other populations
Competition for sunlight leads to taller trees.: favors certain alleles
The DNA of a snake changes to make its venom stronger:creates new alleles from DNA
A grassfire randomly sweeps through a population of buffalo and kills most of the animals: randomly selects alleles
Explanation:
name bone that articulates with the proximal end of the tibia.
The femur is the longest bone observed in the human body. The head of this bone (femur) articulates with the acetabulum in order to create the hip joint.
The bone that articulates with the proximal end of the tibia is the FEMUR.The femur acts to transmit the force from the tibia to the hip joint.The distal part of this bone (femur) articulates with the tibia and patella in order to create the knee joint.Learn more in:
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Answer:
Femur
Explanation:
PLEASE HELP ITS DUE SOON 30 POINTS
Write a short story 1 page , about a teenager that finds out overnight that they have a mutation. Describe the details of the mutation , how it is passed down from the generations, and create a protein for your new mutation
Answer:
yes
Explanation:
yes of course
A hot, dry summer will reduce crop yields in part becausea)The stomata of plants stay open to help cool the leaves.b)Too much carbon dioxide enters the plants when stomata are wide open.c)Carbon dioxide uptake is reduced by the stomata closing to prevent excessive water loss.d)Oxygen uptake is reduced by the stomata losing to prevent excessive water loss.
The correct answer to the question is c) Carbon dioxide uptake is reduced by the stomata closing to prevent excessive water loss. During a hot and dry summer, plants tend to lose a lot of water through transpiration, which is the process of water evaporating from the leaves.
In order to conserve water, plants close their stomata, which are small openings on the leaves that allow for gas exchange. When stomata are closed, the amount of carbon dioxide that enters the plant is reduced, which can limit the plant's ability to carry out photosynthesis and produce energy.
This reduction in photosynthesis can result in lower crop yields. While it is true that stomata can also stay open to help cool the leaves, this is not the main reason for reduced crop yields during a hot and dry summer. It is also not true that too much carbon dioxide enters the plants when stomata are wide open or that oxygen uptake is reduced by the stomata closing to prevent excessive water loss. Hence, c is the correct option.
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Item 8
A student collected data about the distance a ball falls over time.
Which type of graph should she use to show the data?
bar graph
scatterplot
circle graph
histogram
Answer:
Its actually scatterplot
Explanation:
In order to show the data that the student collected, the scatter plot should be used.
The bar graph is a graph whereby rectangular bars with heights are used in representing the values that they represent.A scatter plot is when dots are used in representing the values for the two variables that the person has. In this case, the variables are distance and time. It should be noted that the scatter plot is appropriate for two variables. A scatter plot is appropriate as it'll help in showing the extent of the correlation between the variables.In conclusion, the correct option is B.
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What are the main differences between near sighted and far sighted?
Myopia implies the capacity to see things close by with relative lucidity, while farsightedness is the capacity to just obviously see protests that are far away.
A person who is nearsighted can clearly see things close by, but they can't see things far away. The visual image is focused behind the retina rather than directly on it, resulting in farsightedness. It could be because the eyeball is too small or because the focusing power is too low.
The most significant distinction between them is the focal point of the images. Myopia, or nearsightedness, makes it easier for people to see things in the immediate area. Hyperopia, or farsightedness, makes it easier for people to see things in the distance. On the other hand, being nearsighted causes distant objects to appear blurry.
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Please can someone help me write a note on cell theory
Answer:
The cell theory states that:
1) The cell is the structural and functional unit of life.
2) All living organisms are made up of cells.
3) All cells come from previously existing cells.
4) There is no life apart from the life of cells
5) All living things are either single cells (unicellular) or group of cells (multicellular)
1. Fill in the blank spaces with suitable words.
a) The bunching of light back from the surface of a body is____________.
Answer:
reflection please mark me brainliest
HOMEWORK! What do these mean?
How can we use physical properties to describe matter ?
Answer:
Physical Properties: Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter. Physical properties include: appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others
Explanation:
Answer:
➷Physical properties can be observed or measured without changing the composition of matter.
➷Physical properties are used to observe and describe matter
➷Physical properties include
-Appearance, texture,odor, color, melting point,boiling point, density, solubility, polarity and many others.