in the absence of the carbohydrate a, genes x and y are expressed at low levels. when a is introduced, genes x and y are actively transcribed. when the supply of a is exhausted, the expression of x and y drops to very low levels. from this, we can conclude that gene x is a(n)
Answers
Based on the information provided, we can conclude that gene x is a carbohydrate-responsive gene.
This is because in the absence of the carbohydrate, gene x is expressed at low levels. However, when the carbohydrate (a) is introduced, gene x is actively transcribed.
Additionally, when the supply of carbohydrate is exhausted, the expression of gene x drops to very low levels again.
This suggests that gene x responds to the presence and absence of carbohydrate. When the carbohydrate is present, gene x is actively transcribed, leading to higher expression levels.
Conversely, when the carbohydrate is not available, the expression of gene x decreases.
Therefore, based on these observations, we can conclude that gene x is a carbohydrate-responsive gene.
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Related Questions
16. How old are the oldest known fish fossils, according to the 1996 Henry Gee article and the 1996 Philippe Janvier article? ______________________________
17. Where were they collected? ________________________________
18. What are ostracoderms? ________________________________
19. What material composed the internal skeleton of the ostracoderms? ________________________________
20. Why is the internal skeleton of ostracoderms poorly preserved or not preserved? _____________________________
Answers
16. According to the 1996 Henry Gee article and the 1996 Philippe Janvier article, the oldest known fish fossils are about 530 million years old.
17. The oldest known fish fossils were collected from the Yunnan Province in China.
18. Ostracoderms were a group of jawless fish that lived from the Early Ordovician to the Late Devonian period, approximately 510 to 360 million years ago. They were among the earliest vertebrates to evolve, and are considered to be the ancestors of all jawed vertebrates.
19. The internal skeleton of ostracoderms was composed of cartilage.
20. The internal skeleton of ostracoderms is poorly preserved or not preserved at all because cartilage is much less durable than bone. As a result, only the external parts of the ostracoderm skeleton, such as the bony plates that covered their bodies, are typically preserved as fossils.
This has made it difficult for scientists to study the internal anatomy of ostracoderms and to understand how their skeletal structures evolved over time.
The oldest known fish fossils are about 530 million years old and were collected from the Yunnan Province in China. Ostracoderms were a group of jawless fish that lived from the Early Ordovician to the Late Devonian period and were the earliest vertebrates to evolve.
The internal skeleton of ostracoderms was composed of cartilage, which is much less durable than bone and therefore poorly preserved or not preserved at all as fossils. This has made it difficult for scientists to study the internal anatomy of ostracoderms.
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According to the 1996 Henry Gee article and the 1996 Philippe Janvier article, the oldest known fish fossils are about 530 million years old.
The oldest known fish fossils were collected from the Yunnan Province in China.
Ostracoderms are extinct jawless fish that lived during the Paleozoic Era.
The internal skeleton of ostracoderms was composed of cartilage.
The internal skeleton of ostracoderms is poorly preserved or not preserved because cartilage does not fossilize as well as bone.
The oldest known fish fossils are about 530 million years old and were collected from the Yunnan Province in China. Ostracoderms were a group of jawless fish that lived from the Early Ordovician to the Late Devonian period and were the earliest vertebrates to evolve. The internal skeleton of ostracoderms was composed of cartilage, which is much less durable than bone and therefore poorly preserved or not preserved at all as fossils. This has made it difficult for scientists to study the internal anatomy of ostracoderms.
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what is the value y ？
Answers
Answer:
\( {3}^{y} \times {3}^{8} = {3}^{12} \\ {3}^{y + 8} = {3}^{12} \\ y + 8 = 12 \\ y = 12 - 8 \\ y = 4 \\ thank \: you\)
Winnie, Daud and Parvin collected a total of 9000
stickers.Winnie collected 3274 stickers.She collected 931
fewer stickers than Daud.
a.How many stickers did Daud collect?
b.How many stickers did Parvin collect?
Answers
ANSWER:
a.) 4, 205 stickers
b.) 1, 521 stickers
How could a model of meiosis be useful to scientists or to science students?
Answers
Answer:
YOUR ANSWER IS
Explanation:
to use a hand on method to develop an understanding of the mechanisim of meiosis using an organisum
When does interphase occur?
During Prophase
Between cell divisions
Between Anaphase and Prophase
Before Metaphase
Answers
Answer:
Before Metaphase
Explanation:
The late G2 phase occurs before metaphase. The late G2 phases is where interphase occurs.
What is CRISPR used for?
Answers
amino acids are linked together to make proteins by removing a molecule of in a process called
Answers
In a full Sentence: Amino acids are linked together to make proteins by removing a molecule of water in a process called dehydration synthesis .
the peppered moth lands on the bark of a tree trunk and opens its wings to rest. a hungry flycatcher bird that was close behind swoops down for a meal but loses sight of its prey. the moth blended in with the tree trunk. blending in let it avoid the pesky flycatcher, so the moth lives to see another day. this is an example of ultimate causation. true or false?
Answers
Answer it’s going to be B:
Explanation:
Which variable is dependent and which is independent? Plants receiving 50 ml of water will grow taller than plants receiving 20 ml of water to
Answers
Answer:
Dependent variable: Plant growth
Independent variable: Water
Explanation:
The Independent variable in an experiment is defined as the variable which can be changed or controlled to measure its effect on the dependent variable and change in dependent variable depends on the independent variable.
In the given example quantity of water is an independent variable and plant growth is a dependent variable because quantity of water can be controlled that influences plant growth.
Hence, the correct answer is:
Dependent variable: Plant growth
Independent variable: Water
______carries directions from the nucleus to the ribosomes.
A- tRNA
B- mRNA
C-rRNA
D-DNA
Answers
the answer is mrna :)
Answer:
B mRNA
Explanation:
Yw
if one strand of dna has the sequence c-t-a-g-c-g-t-t-a, what sequence would appear opposite it on the other strand? enter the complementary sequence of letters separated by hyphens.
Answers
The sequence that would appear opposite to the given sequence on the other strand of DNA is G-A-T-C-G-C-A-A-T and the complementary sequence of letters separated by hyphens is G-A-T-C-G-C-A-A-T. The nucleotide bases in DNA can form base pairs in a particular manner such that each base pairs with the other.
In the double helix structure of DNA, the two complementary strands are held together by hydrogen bonds. The base pairs are A-T and C-G. The nucleotide sequence on one strand determines the sequence on the other strand.
If the sequence on one strand is given, we can easily find out the sequence on the other strand. The given sequence on one strand of DNA is C-T-A-G-C-G-T-T-A. The complementary base pair for C is G, for T is A, for A is T, and for G is C. Therefore, the complementary sequence for the given sequence is G-A-T-C-G-C-A-A-T.
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Define a hybrid fish
Answers
Answer:
Scientists accidentally bred a hybrid fish called the sturddlefish The sturddlefish is a hybrid of a sturgeon and a paddlefish, and scientists created this new creature on accident. Forward 15 seconds Back 15 seconds
Explanation:
hope it helps
Hope this helped
Brainliest is appreciated
Which of the following oil seeds is also grown as a fiber-producing plant?
olives
peanuts
mustard seed
flax
Answers
Answer:
Flax
Explanation:
I'm familiar with flax
All the following statements about an epithelium are TRUE EXCEPT ONE. Which one is the EXCEPTION? A.) Is avascular
B.) Has a free surface
C.) Has a limited capacity for cells to divide
D.) Has nerve fibers
E.) Has no or very little extracellular material
Answers
The statement that is NOT true about an epithelium is: Has a limited capacity for cells to divide. Option C is correct.
Epithelia have a high capacity for cells to divide and regenerate, which is essential for their function as a protective barrier and as a lining for various organs and structures in the body. The other statements are true about epithelia:
Epithelia are avascular, meaning they have no blood vessels of their own and must rely on diffusion from nearby blood vessels for their nutrient and oxygen supply.
Epithelia have a free surface, which is exposed to the external environment or to internal body cavities, and may have specialized structures such as cilia or microvilli.
Epithelia have nerve fibers that help to detect and respond to changes in their environment.
Epithelia have little or no extracellular material, as their cells are tightly packed together with minimal space between them.
Hence, C. Has a limited capacity for cells to divide is the correct option.
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In the Novel: The Immortal Life of Henrietta Lacks in the Week 5 Learning Activities. Christoph Lengauer makes an analogy stating that cells should be treated with the same value as oil. He states, "Why not treat valuable cells like oil? When you find oil on somebody's property, it doesn't automatically belong to them, but they do get a portion of the profits." This excerpt from the novel raises some ethical issues to be examined.
What contemporary ethics and laws in health care practice do Lengauer’s views go against?
Answers
Obtaining human cells for research or commercial purposes without the informed consent of the individual
What is the ethics?Patient autonomy is the term used to describe a person's ability to make choices regarding their own body and medical care. By suggesting that individuals should not have complete control over their cells and should not be the exclusive recipients of any revenues generated from them, Lengauer's analogy undercuts patient autonomy.
The ownership of human tissue is a topic of continuing discussion and is governed by several legal systems. Individuals typically have legal rights over their own cells and tissues. In Lengauer's comparison, the ownership rights of individuals over their cells appear to be disregarded.
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Jose designs an experiment to determine how music affects a plants' growth. He plans to carry
out his experiment by using six different flowering plants. Each plant will be placed in one liter
of potting soil, and given the same amount of water and sunlight each day. Each plant will be
exposed to six types of music for the duration of the experiment. He presents his plan to his
teacher for approval, but was told there is an error in the design of his experiment. What error
did Jose make?
A. Jose's plan does not have a hypothesis.
B. Jose's plan has too many control variables.
C. Jose's plan has more than one test variable (independent variable).
D. Jose's plan does not have an outcome variable (dependent variable).
Answers
Answer:
a
Explanation:
What is the Law of Independent Assortment?
Answers
Independent Assortment cells develop, they individually split apart. Gregor Mendel discovered independent gene assemblages and their existence in 1865 while doing genetic research on pea plants.
Quiz: What distinguishes segregation from independent assortment?independent assortment from segregation Segregation is the random separation of two genes for a particular characteristic from the parent into sex cells. An independent assortment is when one trait is inherited without affecting the inheritance of another trait.
Is crossing over the same as independent assortment?Parts of chromatids switch positions between homologous chromosomes during the prophase I process known as crossing over. Independent assortment is the process in which sister chromatids are randomly shifted into during metaphase Ii and anaphase.
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Why might the earthquake in Indonesia have been so less deadly than those in India or Iran, even though it's magnitude was greater than both of them. *
Answers
Answer:
Earthquake occur in the sea of Indonesia instead on the land.
Explanation:
The earthquake in Indonesia have been so less deadly than those in India or Iran, even though it's magnitude was greater than both of them because the earthquake occurs in the sea of Indonesia which is far from the Indonesian land while on the other hand, the earthquake occur on the the land in India and Iran not on the sea which is more deadly as compared to Indonesia even its lower magnitude.
WHAT ARE SOME DEFENSE MECHANISMS SPECIES USE TO WARD OFF OTHER SPECIES?
Answers
hope this helps
Types of animal defense mechanisms
Contents
2.1 Startling the predator.
2.2 Pursuit-deterrent signals.
2.3 Playing dead.
2.4 Distraction.
2.5 Mimicry and aposematism.
2.6 Defensive structures.
Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
Answers
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
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Lamarck and Darwin had two different theories as to why giraffes have such long necks.
Animals stretched all day long to reach food, so their neck became longer.
Those animals born with longer necks had an advantage in survival.
Which of these theories assumes an immediate influence of an environmental factor on the physical traits of an animal and why?
A. Darwin’s theory because it assumes that the giraffe can adjust its neck length to whatever environment it is in at the moment.
B. Lamarck’s theory because it assumes that by providing even taller trees, a giraffe’s neck would become even longer.
C. Lamarck’s theory because it assumes that the trees will only grow as high as a giraffe’s neck can reach.
B. Darwin’s theory because it assumes that the giraffe’s genes will change over time to better suit the environment.
Darwin’s theory because it assumes that the giraffe’s genes will change over time to better suit the environment.
Answers
Darwin’s theory assumes an immediate influence of an environmental factor on the physical traits of an animal because it assumes that the giraffe’s genes will change over time to better suit the environment.
What is the theory of evolution by Charles Darwin giraffe?A Darwinian theory of evolution posits that it was through random variation that some giraffes had longer necks than others. Thanks to their long necks, they were able to reach leaves high up in the trees.
Charles Darwin held up giraffes as a prime example of natural selection, his theory that's often summarized as “survival of the fittest.”
Charles Darwin was the first to propose that giraffes evolved into the elegantly long-necked creatures they are because successive generations realised that extra vertebrae helped them get access to tender leaves on top of trees.
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4. if the dna sequences of two different species are 90% identical, what does it suggest about these species?
Answers
If the DNA sequences of two different species are 90% identical, it suggests that they share a common ancestry or a recent evolutionary history.
DNA is the genetic code that holds the instructions for the development, function, and reproduction of all living things. DNA sequences are the codes that hold the instructions to make the protein, which helps in various cellular functions and organism structure.The genetic code is universal, and it is common among all living organisms. It is made up of four nucleotide bases- adenine (A), thymine (T), guanine (G), and cytosine (C).In comparing DNA sequences between two different species, we can determine how closely related they are to each other. If two species have a high level of DNA sequence similarity, they are more closely related than if they have a low level of similarity.DNA sequences that are 90% identical means they have 90% of the same base pair sequence.
So, it suggests that they share a common ancestry or a recent evolutionary history. This is an indication that the two species evolved from a similar origin and have maintained much of their genetic information over time.
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Which macromolecule is better for you if you needed energy and were trapped on an island for 10 days without a large amount of food? Why?
Answers
Answer:
Biology 1 End-of-Course Assessment Practice Test
For Multiple Choice Items, circle the correct response.
(1.02 MC) SC.912.N.1.1
If a company claims that its product has been proven scientifically, which of the following should
have taken place if the results are to be considered reliable?
A. The company should have held discussions with leading industry scientists.
B. Technology should have been used in both the gathering of data and data analysis.
*C. Results should have been peer reviewed and repeated producing the same findings.
D. The results of the investigation should have been published in popular magazines.
(1.02 MC) SC.912.N.1.1
Based on your knowledge of scientific investigations, which stage of scientific investigation did
the invention of the microscope significantly advance?
A. Communicating the results of experimentation
*B. Gathering the data for the investigation
C. Generating explanations of phenomena
D. Planning the investigation and experimentation
(1.02 HC) SC.912.N.1.1
A student is conducting an investigation to determine the effect of temperature on the
metabolism of yeast (Saccharomyces cerevisiae). Yeast and sugar are added to water, the gas
produced is captured, and its volume is recorded. Which variables should be held constant
during this investigation?
A. Mass of sugar and water temperature
*B. Mass of yeast and mass of sugar
C. Volume of gas and water temperature
D. Volume of gas and mass of yeast
(1.02 MC) SC.912. L.14.1
Scientific law and a scientific theory are similar in that both
A. are based on what we expect to happen based on natural history
B. describe the events that can be observed in nature
C. explain why events and conditions occur as they do in the natural world
*D. represent a large amount of scientific investigation and evidence
Elements in the same column of the periodic table have
A. similar chemical properties.
B. the same number of protons.
C. similar atomic masses.
D. atoms of the same size.
Answers
during the silurian period the first animals to adapt to life on land were
Answers
During the Silurian period, the first animals to adapt to life on land were arthropods, specifically scorpions and millipedes. The Silurian period, which lasted from million years ago, was the third period of the Paleozoic Era.
During this time, there were significant evolutionary changes in marine life. Silurian organisms included corals, bryozoans, and crinoids, as well as jawless fish, jawed fish, and the first land plants and animals.
The Silurian period is known for the diversification and appearance of early vascular plants and arthropods, as well as the first appearance of land animals such as scorpions and millipedes.
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Can 2 objects made from exactly same substance but different shape or size have the same density? Make a graph
Answers
Yes, 2 objects made from exactly same substance but different shape or size have the same density.
How is it possible for items to have varying sizes but the same density?A substance's density is typically independent of its size, both large and small, and independent of its shape. Despite having distinct masses and volumes, a gold brick and a statue both have the same density. A substance's density is generally understood to be its mass per unit volume.
Therefore, object with the highest density will be the smaller of two things if they both have the same mass but differ in size. So one can say that two things have comparable densities if they have the same mass.
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1.______describes the atom like a solar system, where electrons are moving in a specific orbit.
Answers
Answer:
Bohr model
Explanation:
A scientist has discovered a new plant species in the Amazon rainforest she tells her fellow scientist at the Playhouse she has found for Tuesday is a cone for my side about this plan is different from an organism
Answers
Answer:
It is a seeded vascular plant.
It does not depend on insect pollination.
Explanation:
The complete question is: A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm? Its seeds have one or two cotyledons. Its stems' vascular bundles are scattered. It does not depend on insect pollination. It is a seeded vascular plant.
The correct option would be that the plant is a seeded vascular plant and does not depend on insect pollination.
Gymnosperms are the only group of plants that produce cones. They are one of the plant groups that have vascular tissues in the form of xylem and phloem as well as been able to produce seed in the form fo cones. Hence, they are said to be seeded vascular plants.
Gymnosperms also carry out their pollination by relying solely on wind for the transfer of their pollen grain to the female organ. In other words, they do not depend on insect for pollination.
A ball is dropped from the top of a building the gravitational force is 10 N down and the force air resistance is 1 N up what is the net force?
Answers
Answer:
The net force on the object is 9N down.
Explanation:
The given parameters;
gravitational force, Fg = 10 N
force of air resistance, Fr = 1 N
The net force on an object is defined as the change in the total force on the object.
Assuming the downward motion = positive direction
the downward motion = air resistance = negative direction
10n -1n=9n
Thus, the net force on the object is 9N down.
what are quantities? Give any two example.
Answers
Answer:
Physical quantities that are derived from one or more fundamental physical quantities are called derived physical quantities. Examples: area, volume, speed, density , etc.
Explanation:
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