The discoverers of DNA are b. James Watson, c. Francis Crick, and d. Maurice Wilkins
DNA or Deoxyribonucleic acid is a double-stranded, helical nucleic acid molecule that stores genetic information used in the growth, development, functioning, and reproduction of all known living organisms. The discoverers of DNA are James Watson, Francis Crick, and Maurice Wilkins. They were all awarded the Nobel Prize in Physiology or Medicine in 1962.The research was based on Rosalind Franklin's pioneering X-ray crystallography work and established a physical basis for heredity, for which they won the Nobel Prize in Physiology or Medicine in 1962.
Gregor Mendel and Charles Darwin are not credited with the discovery of DNA. Gregor Mendel is recognized as the father of genetics for his research on the inheritance of traits in pea plants, while Charles Darwin's work on evolution focused on the idea of natural selection. So therefore b. James Watson, c. Francis Crick, and d. Maurice Wilkins are credited with the discovery of DNA.
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Please i Need help (No plagerise)
Answer:
v
Explanation:
2. Carbohydrates, lipids and proteins.
- Carbohydrates after digestion produce: glucose
- Lipids after digestion produce: fatty acids and glycerol
- Protein after digestion produce: amino acids
3. Photosynthesis helps by converting carbon dioxide into oxygen and glucose. The glucose is used as food for the plant and oxygen is a by-product. Cellular respiration converts the oxygen and glucose into water and carbon dioxide. Carbon dioxide and water are both by-products and ATP is the energy that is produced from this process. They both work hand-in-hand to make ATP.
Write a paragraph on how Blood Glucose goes with Negative Feedback
Write a paragraph on how Body Temperature goes with Negative Feedback
Answer:
Here are some explanations from 0nline so if you want rewrite in your own words
hope this helps :))
blood glucose-
"The control of blood sugar (glucose) by insulin is a good example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense a change. In turn, the control center (pancreas) secretes insulin into the blood effectively lowering blood sugar levels."
"If the blood glucose level is too low, the pancreas releases the hormone glucagon. This travels to the liver in the blood and causes the break-down of glycogen into glucose. The glucose enters the blood stream and glucose levels increase back to normal. This is an example of negative feedback."
body temperature-
" Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body."
"Body temperature is controlled by the hypothalamus in the brain. If the hypothalamus detects that the body is too hot, the response is that the body begins to sweat to try and reduce the temperature back to the correct level."
"Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances."
"Negative feedback brings a system back to its level of normal functioning. Adjustments of blood pressure, metabolism, and body temperature are all negative feedback"
A woman with hemophilia marries a man who does not have hemophilia. What are the possible phenotypes of their children
If a woman with hemophilia marries a man who does not have hemophilia, all of their daughters will be carriers, and their sons will have a 50% chance of having hemophilia and a 50% chance of not having hemophilia.
Hemophilia is an X-linked recessive disorder that affects blood clotting in the body. This means that the gene responsible for hemophilia is located on the X chromosome, one of the two sex chromosomes. Women have two X chromosomes, while men have one X and one Y chromosome.
A woman with hemophilia has one X chromosome with the gene mutation that causes hemophilia and one X chromosome without the gene mutation. This means that she is a carrier of hemophilia, but she does not have the disorder herself. A man who does not have hemophilia does not have the gene mutation on either his X or Y chromosome.
When a woman with hemophilia and a man who does not have hemophilia have children, there are different possible outcomes depending on whether the child inherits the normal or mutated X chromosome from the mother. All of their daughters will inherit one X chromosome from the mother that has the hemophilia gene mutation and one X chromosome from the father that does not have the mutation. This means that all of their daughters will be carriers of hemophilia, but they will not have the disorder themselves.
All of their sons will inherit one X chromosome from the mother and one Y chromosome from the father. This means that their sons will have a 50% chance of inheriting the X chromosome with the hemophilia gene mutation from the mother and having hemophilia, and a 50% chance of inheriting the X chromosome without the mutation from the mother and not having hemophilia.
Therefore, the possible phenotypes of their children are: daughters who are carriers of hemophilia and sons who have a 50% chance of having hemophilia and a 50% chance of not having hemophilia.
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what is the difference between inquiry and hypothesis when using the scientific method
Explanation:
A hypothesis is defined as an educated guess , while a research question is simplify a research wondering about the world .
An anthropologist compares the remains of Homo neaderthalensis to earlier hominid species, like Homo habilis, and to the contemporary and later species Homo sapiens. He believes that Homo neanderthalensis were the first hominids to bury their dead. What would make this conclusion incorrect? (5 points)
Finding a fossil of Homo habilis beneath fossils of Homo neanderthalensis
Finding fossils of Homo neanderthalensis skeletons in isolation
Finding burial sites of modern Homo sapiens in the same region as Homo neanderthalensis fossils
Finding burial sites of Homo habilis on different continents
Answer:
The correct answer is C. Finding burial sites of modern Homo sapiens in the same region as Homo neanderthalensis fossils
Explanation:
Hominids is a term used to refer to different specimens of human evolution. According to scientific research, it has been established that the best known hominid species of the "Homo" family are organized chronologically as "Homo Habibis", "Homo erectus", "Homo neanderthalensis", and, "Homo sapiens". On the other hand, if an anthropologist believes that the Homo neanderthalensis were the first to practice burials but it is found this practice is only associated to subsequent species such as the Homo sapiens it can be concluded the conclusion of the anthropologist is false. So, the correct answer is c. Finding burial sites of modern Homo sapiens in the same region as Homo neanderthalensis fossils. because the lack of burial sites from Homo Neanderthalensis along with the existence of burial sites of homo sapiens shows this practice belongs to the modern hominid species.
Answer: C
Explanation:
trust the guy who answered before cuz he right
A caterpillar spends time as a caterpillar, then in a distinct period in a chrysalis, and then emerges as a butterfly. In terms of development, this is
In terms of development, this is an example of complete metamorphosis.
Complete metamorphosis is a developmental process that involves distinct stages: egg, larva (caterpillar), pupa (chrysalis), and adult (butterfly). During complete metamorphosis, the organism undergoes significant changes in body structure, behavior, and ecological role as it progresses through each stage.
The transition from a caterpillar to a butterfly involves a dramatic transformation within the pupal stage, where the larval tissues are broken down and reorganized into the adult form. This process allows for the specialization of each stage to fulfill different ecological functions, such as feeding and growth as a caterpillar and reproduction as an adult butterfly. Complete metamorphosis is characteristic of insects like butterflies, moths, beetles, and flies.
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The complete question is:
A caterpillar spends time as a caterpillar, then in a distinct period in a chrysalis, and then emerges as a butterfly. In terms of development, this is called?
I have type "A" blood. Which of these can I NOT get blood from? (check all that apply)
A) B
B) A
C) AB
A water solution is also known as an aqueous solution.
Answer: Yes there's a solution
Explanation:
Which object is the best model of a single bacteria cell?
A-toast
B-A wall
C-Yarn
D-A balloon
When a pitcher is holding a baseball, the ball has____ energy. After the pitcher throws the ball, the ball has _____energy?
potential
heat
kinetic
nuclear
Answer:
1- kinetic
2- potential (not sure!)
Which of the following is not a benefit to humans from biodiversity?
A. Many medications are made from living organisms
B. Enjoyment from recreational activities
C. We have a variety of products produced for clothing, food, and other items
D. The weather is more comfortable
For me it's letter A.
Because B and C and D are benefits of biodiversity....So that's why,for me it's letter A.
Well,don't trust me if you don't want to
Which statement describes the genes within DNA?
What is the relationship between gene expression and human reproduction and development?
plss
In the same way, cells during development also express specific sets of genes. These patterns of gene expression cause cells to communicate with neighboring cells, resulting in coordinated development into a multicellular organism.
what is the correct equation for cellular respiration showing the reactants on the left of the equal sign and products on the right of the equal sign?
The correct equation for cellular respiration showing the reactants on the left of the equal sign and products on the right of the equal sign is: C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP.
Cellular respiration is a process that occurs in the cells of living organisms in order to release energy from food molecules (such as glucose). There are three main stages of cellular respiration: glycolysis, the Krebs cycle, and oxidative phosphorylation.
During these stages, glucose is broken down into carbon dioxide and water, and ATP (adenosine triphosphate) is produced as an energy source for the cell. The balanced equation for cellular respiration shows that glucose and oxygen react to produce carbon dioxide, water, and energy (in the form of ATP).
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HURRY WILL MARK BRAINLIEST 9. How would the results change if the substances were placed into
honey instead of water? Honey has a density of 1.45 g/mL.
-Cardboard would float in water, but sink in honey.
-Glass would sink in water, but float in honey.
-An apple would float in water, but would sink in honey.
-Dish soap would sink in water, but would float in honey.
what differences are there between the meiotic divisions in a developing sperm and those in a developing ovum
The main differences between the meiotic divisions in a developing sperm and those in a developing ovum are the different timing, number of cells produced and their size.
The main differences between the meiotic divisions in a developing sperm and those in a developing ovum are as follows: Timing: In males, meiotic divisions begin at puberty and continue throughout their life, while in females, they begin before birth but halt in the diplotene phase and only resume after puberty. Number of cells produced: A diploid spermatogonium produces four haploid spermatids, while a diploid oogonium produces only one haploid ovum during meiotic divisions.
Size: The meiotic divisions of spermatogenesis lead to equally sized sperm cells, while in oogenesis, the cytoplasmic division is unequal, leading to one large egg cell and smaller polar bodies that degenerate. Overall, there are significant differences in the timing, number of cells produced and their size between the meiotic divisions in a developing sperm and those in a developing ovum.
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If the brain is electrically stimulated from some external source, what is likely to happen?
a. People would have hallucinations as if they took some LSD (a hallucinogenic drug).
b. People would not register the sensations.
c. People would have hallucinations specific to the region that is stimulated.
d. People would sue the researchers because such things only happen in horror movies.
If the brain is electrically stimulated from some external source, it is likely that people would have hallucinations specific to the region that is stimulated (Option C).
The specific effects of electrical stimulation of the brain can vary widely depending on factors such as the location and intensity of the stimulation. While some individuals may experience hallucinations, this is not necessarily a universal response. Additionally, it is unlikely that individuals would sue researchers simply for conducting this type of research, as ethical guidelines and informed consent procedures are typically in place to protect study participants.
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describe the feeding mechanism for a ciliated protist like a paramecium sp
What is the cell membrane made of?
Choose 1 answer:
(Choice A)
A
Lipids and proteins only
(Choice B)
B
Lipids only
(Choice C)
C
Carbohydrates and lipids only
(Choice D)
D
Lipids, proteins, and carbohydrates
Answer:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.
cilia and eukaryotic flagella a. use intermediate filament to propel cells b. contain microfilaments c. contain microtubules that alone are sufficient to drive movement d. must have a motor protein that uses the energy of atp hydrolysis to power the microtubule movement
They are useful for movement when grouped in geometric patterns inside flagella and cilia. Intermediate filaments have a diameter of roughly 10 nm and offer tensile strength to the cell.
All three kinds of fibers are found in the intestine's epithelium (skin) cells. Intermediate filaments' principal role is to promote cell cohesion and prevent the abrupt breakage of epithelial cell sheets under strain.
Cell mobility is supported by cytoskeletal filaments. Cilia and (eukaryotic) flagella, for example, move as a result of microtubules sliding along each other.
Cilia and flagella are eukaryotic microtubule-based organelles that protrude from the surface of the majority of mammalian cells. Large protein complexes and motors are required for distal tubulin addition and ciliary extension in these structures.
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Can someone plz help me?
Answer:
Mitochondria
Explanation:
hope it helps
This plant cell is in which stage of mitosis
A: Telophase
B: Anaphase
C: Prophase
D: Metaphase
Answer:
Without seeing the plant cell, it is not possible to determine the exact stage of mitosis the plant cell is in. However, during metaphase, the chromosomes align at the equator of the cell and are attached to the spindle fibers. During anaphase, the spindle fibers separate the sister chromatids and pull them towards opposite poles of the cell. During telophase, the chromosomes reach the poles of the cell, and a new nuclear envelope begins to form around each set of chromosomes. Therefore, if the plant cell has chromosomes that are aligned in the middle of the cell, it is likely in metaphase. If the chromosomes are being pulled towards opposite poles of the cell, it is likely in anaphase. If the chromosomes have reached the poles and new nuclear envelopes are forming, it is likely in telophase.
The purpose of the foot of a molluscs is:
Answer:
Foot of a molluscs is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study.
Q3.12. approximately how long did it take for the frequency of the dominant allele to fall to half its starting value?
The time it takes for the frequency of a dominant allele to fall to half its starting value can be estimated using the Hardy-Weinberg equation and the concept of genetic drift.
In a large population under genetic drift, the rate of change in allele frequency is proportional to the frequency of the allele. This means that the rate of change is faster when the allele is more common and slower when it is less common.
To estimate the time it takes for the frequency to halve, we can use the formula:
t = (ln(2)) / (2 * s)
where t represents time in generations and s represents the selection coefficient. The selection coefficient is a measure of how much less fit the individuals carrying the dominant allele are compared to those with the recessive allele.
In this case, we don't have information about the selection coefficient or the specific genetic scenario, so we cannot provide an exact time estimate. However, we can say that the time it takes for the frequency of the dominant allele to halve will generally depend on the strength of selection against it and the initial frequency of the allele in the population.
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4. Some groups of organisms move from colder climates to warmer climates at
certain points of the year. This behavior is known as
A. adaptation
B. reproduction
C. migration
D. hibernation
Is marvin's high blood glucose level the direct cause for concern expressed by the nurse?
Yes, Marvin's high blood glucose level is the direct cause for concern expressed by the nurse.
A high blood glucose level, also known as hyperglycemia, can be a significant cause for concern in healthcare settings. Elevated blood glucose levels indicate that the body is unable to properly regulate the amount of glucose in the bloodstream, which can have serious implications for an individual's health.
High blood glucose levels can be a sign of diabetes or other underlying medical conditions. Uncontrolled diabetes can lead to long-term complications such as cardiovascular disease, kidney damage, nerve damage, and impaired wound healing. Acute complications like diabetic ketoacidosis (DKA) or hyperosmolar hyperglycemic state (HHS) can also arise, posing immediate risks to a person's well-being.
Therefore, when a nurse expresses concern about Marvin's high blood glucose level, it is because they recognize the potential health risks associated with uncontrolled hyperglycemia. The nurse's concern may prompt further investigation, intervention, and management to bring Marvin's blood glucose level within a healthy range and mitigate potential complications.
In summary, Marvin's high blood glucose level is a direct cause for concern expressed by the nurse due to the associated health risks and potential complications that can arise from uncontrolled hyperglycemia.
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Yes, Marvin's high blood glucose level is the direct cause for concern expressed by the nurse.
Hyperglycemia, or high blood sugar, can have a serious negative impact on health, especially in people who already have diseases like diabetes. Elevated blood glucose levels may be a sign of inadequate insulin synthesis, insulin resistance, or poor glucose management. Uncontrolled high blood sugar levels can result in a number of concerns, including metabolic changes, organ and nerve damage, cardiovascular issues, and nerve damage. The nurse's concern is therefore well-founded because it emphasises the importance of tracking and controlling Marvin's blood glucose levels in order to avoid further health problems.
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what is the basic building blocks of all living organisms.
Which statement is a hypothesis? Jada decides to investigate the effectiveness of hand sanitizers compared to soap. She says that hand sanitizers are as effective as soap in destroying bacteria. Many sanitizers have alcohol as their main component. She performs a study in which people use sanitizers for one week and then soap for another week. She then examines the bacterial count.
Answer:
Hand sanitizers are as effective as soap in destroying bacteria.
Explanation:
A hypothesis is a supposition that is made with limited evidence. Jada is performing this experiment to provide further evidence either supporting or rejecting her theory of whether hand sanitizers are as effective as soap.
100 POINTS
a gene has the following nucleotide sequence TTCAGAGGT What amino acid sequence will the resulting protein have?
Answer:
im not gay
Explanation:
What are monomers or building blocks of proteins, nucleic acids, carbohydrates and lipids?
Answer:Carbohydrates provide energy to the body, particularly through glucose, a simple sugar ... Lipids are also the building blocks of many hormones and are an important constituent of the plasma membrane ... Amino acids are the monomers that make up proteins. Nucleic acids are key macromolecules in the continuity of life.
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