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Related Questions
1. Marco's little brother is watching a TV program about the gene that causes the genetic disease hemophilia. People with this disease cannot make a protein that is needed for blood to clot. After a few minutes, he turns to Marco and asks, "what exactly is a gene, anyway?"
Which of the following BEST describes a gene?
A. A gene is a random change to an organism's DNA.
B. A gene is a structure in a cell that contains the cell's chromosomes.
C. A gene is made of DNA and contains the instructions for building proteins.
D. A gene is a protein that makes up an organism's structure and helps it function.
Answers
A gene can be described as being made up of DNA and it contains the instructions which are required for the building of the proteins.
The correct option is option C.
Genes are basically considered as the the functional units of heredity as they are basically composed of DNA, which is the nucleic acid responsible of the transmission of information from one generation to the other generation.
The chromosomes which are present in our body are basically made up of DNA which contain a number of genes. Each of the gene basically comprises of certain set of instructions which are required in order to perform a particular function or codes for some proteins.
Hence, the correct option is option C.
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List 2 consumer - consumer relationships from the web.
PLEASE HELP ME! I DONT HAVE A LOT OF TIME tyty
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What happened to us consumption of natural gas
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In recent years, the United States has experienced an increase in its consumption of natural gas.
Factors contributing to this rise include the abundance of domestic natural gas resources, advancements in extraction techniques such as hydraulic fracturing (fracking), and the transition from coal to natural gas in power generation. Natural gas is utilized for a variety of purposes, including residential and commercial heating, electricity generation, industrial processes, and as a feedstock in the petrochemical industry.
The cleaner-burning nature of natural gas compared to coal has also played a role in its increased use as the country aims to reduce greenhouse gas emissions and transition towards cleaner energy sources.
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i need to know if its true or false ?
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The correct option is TRUE. Mutations outcome to the organism, depend on the interaction between the mutation's effect and the environmental context.
how will the lever of carbon in the atmosphere change if humans do nothing to reduce their impact on the carbon cycle
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Answer: The amount of carbon dioxide will keep on increasing in the atmosphere because there are various sources by which it can be released into the environment. The burning of fossil fuel, emission from vehicles, gases released from industries contributes to the increase in amount of carbon dioxide in environment.
Explanation:
At a blood bank there were five problems with a laboratory technician's work performance the first year at work
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The supervisor at the blood bank would likely consider spilling 5 units of blood (problem 2) as the most serious issue among the listed problems. While all the problems listed have their own level of seriousness, spilling 5 units of blood poses significant concerns. The correct answer is 2.
Spilling 5 units of blood represents a critical error with potentially severe consequences. Blood is a valuable and potentially life-saving resource, and any loss or contamination can have serious implications for patient care.
It not only wastes precious resources but also poses potential risks to both patients and staff members, including the potential for infections and the need for additional blood collection.
While other problems like coming to work late, working too slowly, mislabeling units of blood, or breaking a microscope lens can impact efficiency, accuracy, and productivity, they may not directly jeopardize patient health and safety to the same extent as spilling blood.
Therefore, the supervisor would likely consider the spilling of 5 units of blood as the most serious problem, requiring immediate attention, investigation, and measures to prevent such incidents in the future. Therefore, the correct answer is 2.
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Question
1. At a blood bank there were five problems with a laboratory technician's work performance the first year at work. Which of the problems listed below would the technician's supervisor likely consider the most serious? (1) coming to work late
(2) spilling 5 units of blood
(3) working too slowly
(4) mislabeling 4 units of blood
(5) breaking the lens on a microscope
What is the cause and how to deal with strep throat,
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Answer:
it he cause of spreading germs like bactria and infect sores on ur skin it take a while for them to realizes it uhm im not sure about how to cure/ deal with it
Explanation:
How does an increased population size affect the amount of competition between organisms?
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The first detailed and quantitative studies on inheritance were carried out by an Austrian monk named _____. A. Mendel B. Darwin C. Mendeleev D. Benedict
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The first detailed and quantitative studies on inheritance were carried out by an Austrian monk named Gregor Mendel.
Mendel is known as the "father of genetics" for his pioneering work on the inheritance of traits in pea plants, which laid the foundation for the field of genetics. His work, published in the mid-1800s, showed that traits are inherited through the transmission of discrete units of information, now known as genes, from parents to offspring.
Mendel's work was largely ignored at the time, but it was rediscovered in the early 20th century and has had a profound impact on the understanding of how traits are passed down from generation to generation.
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A student conducted an experiment to determine how long it would take for Substance A to freeze. She recorded the substance’s state of matter every five minutes into her data table . In this example, Substance A is a (an) ________________.
A. Control group
B. Independent (test) variable
C. Dependent (outcome) variable
D. Constant variable
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euglena cell membrane help keep the cell alive how
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Euglena are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyta. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglena usually live in quiet ponds or puddles.
Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black.
The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like structures throughout the cell. Color the chloroplasts green. Euglena also have an eyespot at the anterior end that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color the eyespot red.Euglena can also gain nutrients by absorbing them across their cell membrane, hence they become heterotrophic when light is not available, and they cannot photosynthesize.
The euglena has a stiff pellicle outside the cell membrane that helps it keep its shape, though the pellicle is somewhat flexible and some euglena can be observed scrunching up and moving in an inchworm type fashion. Color the pellicle blue.
In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities. The nucleolus can be seen within the nucleus. Color the nucleus purple, and the nucleolus pink.
The interior of the cell contains a jelly-like fluid substance called cytoplasm. Color the cytoplasm light yellow. Toward the posterior of the cell is a star-like structure: the contractile vacuole. This organelle helps the cell remove excess water, and without it the euglena could take in some much water due to osmosis that the cell would explode. Color the contractile vacuole orange.
Explanation:
Answer:
im pretty sure the cell membrane just protects the Euglena as a whole and the rest of the cells inside it.
Explanation:
Compare and contrast trends in participation in sport and active leisure
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The active leisure industry is a group of activities, events, and activities that combine fitness and outdoor activities. These activities are usually non-structured, non-competitive, and promote an active, healthy lifestyle.
Adult sports and activities include walking, fitness or gym, running or athletics, swimming, cycling, bushwalking, football or soccer, and yoga.
In today’s world, Physical Activity (PA) is no longer just a personal and individual choice; it is a social and political necessity. Its importance is recognized by public health authorities and governments around the world, which has led to an increase in PA activity (mainly due to the growing awareness of the negative health impacts of a lack of physical activity).
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lysis What is the term for the process of determining types and amounts of nutrients in feedstuff or in a prepared mix? A. Pearson Square Analysis B. Diet plan C. Feed analysis D. Balanced ration
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Answer:
A
Explanation:
I THINK SO I hope you're happy with the answer I gave you
The cell wall of fungi is made up of The cell well of algae is made up of ?
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Algae( water like protists) : Cellulose
Albinism in humans can be caused by recessive mutations in different genes that cause a total lack of melanin pigment. A complementation test would be available when two people with albinism mate to produce offspring. If the two people carry mutations in different genes that each cause albinism, what frequency would albinism occur in their children?
Answers
Answer:
none (zero frequency)
Explanation:
The complementation test is widely used in genetics for assessing whether two mutations associated with a phenotypic trait represent two different gene variants of the same gene (i.e., two alleles of the same gene) or if they are mutations associated with two different genes. In a recessive trait, the offspring must receive one recessive allele from each parent in order to show the recessive phenotype (in this case, albinism). Moreover, in heterozygous individuals for a trait that exhibits complete dominance, recessive alleles always are masked by dominant alleles. Albinism is a multigenic (polygenic) recessive trait, thereby individuals who carry recessive mutations causing albinism on different genes will have zero probability (none) of having offspring with albinism.
Answer:
albinism frequency ---> 3/4 = 75% = 0.75 of the progeny will be albino.
Explanation:
Available data:
Albinism can be caused by recessive mutations in different genes that cause a total lack of melanin pigment.Two people with albinism mate to produce offspringThe two people carry mutations in different genes that each cause albinismLet us say that genes A and B are involved.
Gene A: AA and Aa individuals will express pigments, while aa individuals will be albinosGene B: BB and Bb individuals express color, while bb are albinos.Cross: two people with albinism that carry the mutation in different genes
Parentals) Aabb x aaBb
Phenotype) Albino both parents
Gametes) Ab, Ab, ab, ab
aB, aB, ab, ab
Punnett square) Ab Ab ab ab
aB AaBb AaBb aaBb aaBb
aB AaBb AaBb aaBb aaBb
ab Aabb Aabb aabb aabb
ab Aabb Aabb aabb aabb
F1) 12/16 will be albino
4/16 will express color
4/16 will be Aabb
4/16 will be aaBb
4/16 will be aabb
12/16 = 3/4 = 75% = 0.75 of the progeny will be albino.
How to write a discussion on macromolecules in a lab report
Answers
What happens to electrons when pigments in Photosystem II absorb light? They combine with oxygen and hydrogen to produce water. They are pumped across the membrane into the thylakoid. They move through an electron transport chain to Photosystem I. They become excited and break down the pigments to release ATP.
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Answer:
The correct answer is They move through an electron transport chain to Photosystem I.
Explanation:
Luminous energy is trapped by a chlorophyll molecule in the Photosystem II. When the pigment molecules absorb light, electrons get in a higher energy level. These excited electrons go through the electron transport chain to an inferior energy level in the photosystem I. When the excited electrons leave photosystem II, they are replaced by new electrons that are extracted from the water molecules. As electrons go through the transport chain, their released energy is used to produce ATP molecules. Luminous energy absorbed in the photosystem I move the electrons to another electron acceptor from where they are transported again and used to produce NADPH molecules. When electrons are eliminated from Photosystem I, they are replaced by new electrons that are coming from the photosystem II through the transport chain.
oxygen is very electronegative and therefore is a strong reducing agent
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The oxygen atoms undergo reduction, formally gaining electrons, while the carbon atoms undergo oxidation, losing electrons. Thus oxygen is the oxidizing agent and carbon is the reducing agent in this reaction.
whoch organelle is denoted by a?
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Answer:
Endoplasmic Reticulum
Mad cow disease is caused by deformed proteins called prions. The disease is spread when meat from an infected cow is eaten. Prions can cause normal proteins to become deformed, producing more prions. After a few years, the brain of an infected person or cow looks like a sponge full of holes. Are prions considered organisms?
Group of answer choices
Yes, because they can cause disease
No, because they can’t make their own food
No, because they are not made of cells
Yes, because they can make more of themselves
Answers
Answer:
D - Yes, because they can make more of themselves
Explanation:
A simple search online told me that they were organisms.
Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 30 percent solute solution. Would the blood cell get bigger or smaller? Why? In your explanation, you must tell me which area has the hypotonic solution (inside the blood cell or outside the blood cell), which area has the hypertonic solution (inside the blood cell or outside the blood cell), and which direction the water would be moving (into the cell or out of the cell).
Answers
Answer:
smaller
Explanation:
the cytoplasm of the cell has lower concentration than the surrounding solution
water molecules diffuse out of the cell, they shrink and loose shape a process known as crenation
Answer:
smaller i belive
Explanation:
92ml 3.0 fl oz what is the ratio
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The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).
1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).
Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).
Now we can express the ratio between 92 mL and 88.72 mL:
92 mL : 88.72 mL
Simplifying the ratio by dividing both sides by the greatest common divisor, we get:
46 : 44
So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
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Three hypotheses—ecocide, rat outbreak, and climate change—are candidates as explanations of why the society of Easter Island collapsed. Explain each hypothesis, present at least one piece of evidence for each one, and state a lesson that each hypothesis contains for the world today. For each hypothesis, write one paragraph of at least four lines
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In the ecocide hypothesis, humans used the resources irresponsibly and caused deforestation.
How is the hypothesis depictedHumans used the logs from the trees to transport the big statues and people also used the trees to build a shelter. In the ecocide hypothesis, the resources were used irresponsibly.
In the rat outbreak, rats were introduced to the environment and fed on the trees. In this case, the trees had bite marks on the bottom of the tree and this wasn’t an intentional introduction.
For climate change, as the climate changed, lakes were separated from the main body of water.
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Which was present in the unknown? starch lipids nucleic acids proteins
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To test for the presence of starch, you can use iodine solution, which turns blue-black in the presence of starch. Lipids can be identified using a Sudan III or Sudan IV test, where lipids will appear as red or orange-stained spots.
Nucleic acids can be detected through tests like the diphenylamine test or the biuret test.
The diphenylamine test produces a blue color in the presence of DNA, while the biuret test results in a purple color in the presence of RNA.
Proteins can also be identified using the biuret test, as proteins will cause the solution to turn purple.
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Who was the last Scientist to make the last part of the cell theory?
Answers
Answer:
Robet Hooke
Explanation:
I could be Robert Hooke
Draw the basic structure of Adenosine triphosphate below, labeling each of the three components. What makes this molecule unique in terms of structure and function compared to DNA or RNA?List the unique structures and function of ATP
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Adenosine triphosphate consits of nitrogenous base of a ribose sugar (middle) attached to a adenine (green) and three phosphate groups (left).
It functions as the energy source in cellular processes.
The diagram shows Hox genes and body segments in fruit flies. Head Fruit fly embryo Thorax Hox genes Adult fruit fly Abdomen Why does the developing embryo grow wings only in the thorax segment?
a. only the cells in the thorax segment contain the genes needed to build wings
b. the genes for building wings are used first in the thorax segment, and then transcription factors block them from being used again
c. HOX genes produce transcription factors that regulate genes for wings, so they are turned on only in the thorax
d. after the wings develop in the thorax segment, HOX genes turn off those genes in the other segments
Answers
c. HOX genes are exclusively activated in the thorax because they create transcription factors that control the genes for wings.
Are there Hox genes in fruit flies?A Hox mutation in the fruit fly Drosophila can result in significant modifications, such as the addition of additional wings or the development of legs from the fly's head in place of antennae.Fruit flies are initially built up of repeating units, or segments, that resemble worms. Early in development, hox genes are activated in a number of segments.
What function does the Hox gene serve?An very evolutionarily conserved gene family is the hox genes. In bilateral species, they set the anterior-posterior body axis and control how cells grow.
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The diagram shows a ball resting at the top of a hill.
Which statement best describes the energy in this
system?
х
O The potential energy in the system is greatest at X.
The kinetic energy in the system is greatest at X
O Total energy in the system decreases as the ball
moves from X to Y
O Total energy in the system increases as the ball
moves from X to Y
Answers
Answer:
O Total energy in the system decreases as the ball
Explanation:
The statement which best describes the energy in this system is: A. The potential energy in the system is greatest at X.
What is potential energy?Potential energy can be defined as a form of energy that is possessed by an object due to its height (position or location) above a surface or planet Earth.
How to calculate potential energy.Mathematically, potential energy is given by this formula:
\(P.E = mgh\)
Where:
m is the mass.h is the height.g is acceleration due to gravity.Since the height is maximum at point X, the potential energy in the system is greatest at X.
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Write me a 10 minute speech about varicella zoster
Need it asap
Answers
Varicella Zoster is an infectious viral disease causing chickenpox in children and shingles in grown-ups. Inoculation plays a crucial part in avoidance and lessening complications.
Aspeech on Varicella-ZosterWomen and noblemen,
Nowadays, I would like to examine a vital and predominant viral disease known as Varicella Zoster. Varicella Zoster, commonly alluded to as chickenpox, is caused by a varicella-zoster infection. It fundamentally influences children, but can too affect grown-ups who have not been already contaminated.
Varicella Zoster presents as a profoundly infectious sickness characterized by a particular hasty, fever, and common disquietude. The infection spreads through coordinated contact or respiratory beads, making it effortlessly transmissible inside families and communities.
Whereas chickenpox is for the most part a gentle ailment in children, it can lead to more serious complications in grown-ups, pregnant ladies, and people with debilitated resistant frameworks. These complications incorporate pneumonia, bacterial contaminations, and in uncommon cases, neurological complications such as encephalitis.
Luckily, the improvement of a profoundly successful antibody has essentially diminished the frequency of Varicella Zoster around the world. Immunization not as it were secures people from the distress and potential complications of chickenpox, but too makes a difference anticipate the infection from spreading inside the community.
In any case, Varicella Zoster doesn't halt at chickenpox. Once the introductory contamination settles, the infection remains torpid inside the body and can reactivate a long time afterward, causing a condition known as herpes zoster, or more commonly, shingles.
Shingles are characterized by a difficult hasty that ordinarily happens in a single dermatome, regularly along the middle or confront. The reactivated infection can cause critical pain and inconvenience, enduring for weeks or indeed months. Moreover, complications such as postherpetic neuralgia, a persistent torment disorder, can happen, especially in more seasoned people.
To combat the chance of shingles, an isolated antibody called the shingles antibody or herpes zoster immunization has been created. This antibody not as it were makes a difference anticipate shingles but moreover diminishes the chance of postherpetic neuralgia.
In conclusion, Varicella Zoster, enveloping both chickenpox and shingles, could be a viral contamination that has critical suggestions for open well-being. We have made significant progress in reducing the burden of this disease through extensive vaccination efforts.
In any case, ongoing efforts to prevent Varicella zoster from returning to our communities and to protect powerless populations require prompt attention and vaccination.
Much obliged to you for your thought. Let's collaborate to ensure a better future for everyone.
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TTA , the complementary (matching) strand of DNA would be?
Answers
Answer:
AAT
Explanation:
A pairs with T
C pairs with G.
Thus TTA pairs with AAT
According to complementary base pairing in DNA, the complementary strand of DNA would be AAT.
What is DNA?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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