all apples in the united states, regardless of variety or where they're purchased, are produced by cloning. for more than 2,000 years, apple growers around the world have used a type of cloning called grafting to produce larger, better-tasting apples. why has cloning become the primary method of apple growing? apples grown from seeds usually don't produce apples with the same taste and appearance as that of the parent tree because there's a high degree of genetic variability among the seeds. making identical genetic copies of the preferred fruit is the only way to get reliable apple quality. in grafting, the shoots and branches of the desired fruit, called a scion, are attached onto the trunk and root system of a previously existing tree, called the rootstock. both components of the graft are needed because the rootstock controls gene expression in the scion, triggering production of apples that match the cloned scion. grafting research can be used to produce some interesting tree combinations that are beneficial for intensive agriculture. for example, if you graft the root of a small tree variety, such as the crab apple, onto the shoot from a larger apple tree, such as the gala, you can produce gala apples on a much smaller tree. other scientists are trying to create disease-resistant varieties that would need fewer pesticides. this is beneficial for the environment and also lowers the price of apples in the grocery store. why don't the grafted hybrids produce apples with a blend of traits from the scion and the rootstock? a) the rootstock suppresses activation of the scion genes, which alters fruit production. b) the rootstock is unable to perform photosynthesis and so can't produce fruit. c) transplanted nuclei from scion cells regulate gene expression in the rootstock. d) the rootstock regulates gene expression in the scion but contributes no genetic information for fruit production.

Answers

Answer 1

The right response is (d), which states that while the rootstock controls the scion's gene expression, it makes no genetic contributions to fruit development.

Apples—are they all clones?

Clonal asexual propagation is used to generate all apple varieties, all grape varieties, potatoes, strawberries, and certain other types of plants.

Apples: natural or artificial?Apples first appeared in the wild as a way for megafauna to spread their seeds. More recently, mankind started cultivating familiar crops beside the trees along the Silk Road. The apple trees were domesticated by dispersal.Do apples have the same genetic makeup?The same tree is the source of all apples. Every apple seed is a wild card in the game of chance that is planting apples. The genetic diversity of the pome allows kernels from the same core to emerge into completely different types.

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Related Questions

A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type
of limiting factor causes this?
O density dependent
O density independent
O population dependent
O population independent

A forest fire destroys an area. A small population of trees and a large population of birds are both

Answers

Answer:

Density independent is the correct answer

The type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.

What are density-independent factors?

Density-independent factors are environmental factors that affect populations regardless of their size or density. These factors can include natural disasters such as forest fires, floods, hurricanes, droughts, and other extreme weather events. Other examples of density-independent factors include habitat destruction, pollution, and climate change. In the scenario described, a forest fire destroyed an area, which can lead to the decline of both tree and bird populations. The fire could kill the trees and destroy their habitats, making it difficult for the surviving trees to grow or reproduce.

Hence, the type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.

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Why is water important for living organisms?

Answers

Answer:

. ... . ....

7th grade Complete the following analogy:

Organized cells : tissues as ______: organs

a Tissues

b Organs

c Body

d Organisms

Answers

Answer:

B

Explanation:

Answer:

D

Explanation:

PLEASE ANSWER ASAP!! (I'll give brainly!)
How are the 3 major environmental worldview similar?
Thanks!! :D

Answers

Answer:

There are three major types of environmental worldviews: anthropocentric (human-centered), biocentric (life-centered), or ecocentric (earth-centered). Anthropocentric thinkers often believe that it is the role of humans to be masters of nature.

Explanation:

.Which of the following statements is consistent with the principle of competitive exclusion? a) Natural selection tends to increase competition between closely related species b) An increase in the population size of one species will have a positive impact on the population size of species it competes with c) Bird species generally do not compete for nesting sites d) Two species will likely be able to coexist indefinitely as long as they have the same fundamental niche e) Even a slight competitive advantage will eventually lead to the elimination of the less well adapted of two competing species

Answers

The statement consistent with the principle of competitive exclusion is: e) Even a slight competitive advantage will eventually lead to the elimination of the less well-adapted of two competing species.

Competitive exclusion refers to the idea that two species competing for the same resources cannot coexist indefinitely. When one species has a slight advantage, it will outcompete the other species, eventually leading to the less well-adapted species' elimination from the ecosystem. This principle highlights the importance of resource partitioning and niche differentiation in allowing different species to coexist.

Therefore, (e) is consistent with the principle of competitive exclusion as it highlights the importance of even slight competitive advantages in the survival of a species.

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Green pod is the dominant trait, and yellow pod is the recessive trait for pod color in pea plants. What did Mendel discover in his first round of experiments when he crossed true breeding plants with green pods with true breeding plants with yellow pods?

A. All of the offspring had green pods, and the yellow pod trait seemed to disappear.

B. Half of the offspring had green pods, and the other half had yellow pods.

C. All of the offspring had spotted yellow and green pods.

D. One-fourth of the offspring had yellow pods, and three-fourths had green pods.

Answers

the answer is A because green is the dominant trait

What adaptations does the coyote brush possess that help it survive in the chaparral biome? (site 1)

Answers

The adaptations present in coyote brush that help it survive in the chaparral biome are: it takes shape according to the environment it grows in, its leaves are fire resistant and also has a large root system.

Coyote brush is a bushy plant also known by the name chaparral broom. It belong to the Asteraceae family and is the native of California. The scientific name of the plant is Baccharis pilularis.

Chaparral biome is a coastal region with very hot and dry summers and mild rainy winters. Since the rainfall is very minimal in these region, they are most prone to the summer fires. The biome can be found in California and northern Mexico. This is the reason the species living there have to make various adaptations.

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what is measurement

Answers

Measurement is defined as the act of measuring or the size of something. An example of measurement means the use of a ruler to determine the length of a piece of paper. An example of measurement is 15" by 25".

Answer:

This is the act of measuring something or the act of taking the length, weight or height of something,e.t.c.

Explanation:

Someone plz help me :(

Someone plz help me :(

Answers

I think A or B, depends what you feel about it

The ability to switch off irrelevant brain networks and maintain an internal focus is:____.

Answers

The ability to switch off irrelevant brain networks and maintain an internal focus is: meditation

Meditation is a practice in which someone utilizes a method to train their attention and awareness, reach a cognitively clear and emotionally tranquil and stable state, such as mindfulness or focusing their minds on a certain object, thought, or activity. Many different religious systems practice meditation. Your sensation of quiet, peace, and balance that meditation can bring you can help your physical and emotional health. By concentrating your attention on something peaceful, you can also utilize it to unwind and manage stress. You can learn to keep your focus and maintain inner serenity by practicing meditation.

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Which of the following acts as a chemotactic factor?
A) C5a
B) interferon β
C) leukotriene
D) MAC
E) factor P

Answers

Factor P, acts as a chemotactic factor.

A chemotactic factor is a chemical substance that stimulates the migration of cells, particularly white blood cells, to a particular region of the body.

Neutrophils are chemotactically drawn to an area where a cytokine has been released, and monocytes are drawn to an area where a chemokine is released.

The C5a, leukotrienes, and the MAC can also be classified as chemotactic factors, as they are known to promote the migration of white blood cells to a particular region of the body.

The interferon β, on the other hand, is a type of cytokine that is released in response to viral infections.

However, it does not stimulate the migration of white blood cells and therefore cannot be considered a chemotactic factor.

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Write a paragraph on the development works run
in your district under each of the following
headings Health and Education Transport
and Communication, and trade and Industry​

Answers

Answer: Here is the answer. Please mark me brainlist.

Explanation:

School systems have limited financial resources with which to pursue their objectives and the

design of school funding policies plays a key role in ensuring that resources are directed to where they

can make the most difference. This report seeks to assist governments in achieving their education

policy objectives through the efficient and equitable use of financial resources. It provides a

systematic analysis of school funding policies by looking into the organisation of responsibilities for

raising and spending school funds, the design of mechanisms to distribute funding to schools, the

procedures for planning education budgets, and the practices for monitoring, evaluating and

reporting how funding has been used. Eighteen school systems were actively engaged in the

preparation of this report. In addition, the analysis considers the broader research and policy

literature on school funding approaches in other OECD and partner countries.

This report is the first in a series of thematic comparative reports which bring together the

findings of a major OECD project on the effective use of school resources, the OECD Review of Policies

to Improve the Effectiveness of Resource Use in Schools (School Resources Review).

Forthcoming reports will focus on the organisation of the school offer and on the management of human

resources in school education. The School Resources Review was launched in 2013 to help countries

exchange best practices and learn from one another, and to gather and disseminate evidence of what

works in school resource policies. The project highlights issues and explores ideas for policy

development that may be difficult to raise in national debates. It seeks to inform discussions among

stakeholders with new and different perspectives that are based on research and evidence from

different countries. This ambition also underpins the idea of the thematic comparative reports and the

work behind them.

Which phase of mitosis is shown at the letter 'C'?
A- Interphase
B-Prophase
C- Metaphase
D-Anaphase
E-Telophase

Answers

The phase of mitosis given by the letter 'C' here is Metaphase.

What is mitosis?

In the process of mitosis,  a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The term "mitosis" means " threads," and it is referred to the threadlike aspect of chromosomes as the cell prepares to divide. The process of mitosis consists of five morphologically distinct phases prophase, prometaphase, metaphase, anaphase, and telophase.

The metaphase begins as soon as the prometaphase ends and then the chromosomes align along the cell equator. Every chromosome has at least two microtubules extending from its kinetochore with at least one microtubule hitched to each pole. At this particular juncture, the pressure within the cell becomes balanced, and the chromosomes no longer move back and forth. In addition, the spindle is now complete , and three groups of spindle microtubules are evident. Kinetochore microtubules attach the chromosomes to the spindle pole; interpolar microtubules extend from the spindle pole across the equator, nearly to the contrary spindle pole; and astral microtubules draw out from the spindle pole upto the cell membrane. One of the cell cycle checkpoints happens during prometaphase and metaphase.

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List the six fundamental elements found in living organisms in the text area below.

Answers

Explanation: hopes it helps

Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus

Answer:

Carbon , hydrogen, oxygen , nitrogen , phosphorus, and sulfur

Explanation:

got right on edge.

does each new cell formed by mitosis have the same or diffent chromosomal material as each ohter

Answers

Mitosis have the same chromosomal material as each other they will contain the same number of chromosomes as their parent nuclei.

Cell division is the driving process of the reproduction at the cellular level. Most of the eukaryotic cells will divide in a manner where the ploidy or the number of chromosomes will remains the same, except in the case of germ cells where the number of chromosomes will be halved.

Mitosis is the phase of the cell cycle where the nucleus of a cell will be divided into two nuclei with an equal amount of genetic material in both the daughter nuclei. It succeeds the G2 phase and is succeeded by the cytoplasmic division after the separation of the nucleus.

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In Darwin's day, most people believed that the characteristics of offspring are an average of their parents' characteristics. These averaged traits are then passed down to the offspring's offspring. This concept was called __________ inheritance.

Answers

In Darwin's day, most people believed that the characteristics of offspring are an average of their parents' characteristics. These averaged traits are then passed down to the offspring's offspring. This concept was called blended inheritance. It is also known as the ancestral inheritance theory.

Blended inheritance was a hypothesis that the characteristics of offspring were an average of their parents' characteristics, which were then passed on to the offspring's offspring. It was a prevalent belief in the 19th century that held sway until the late 19th century, including during the time when Darwin was conducting his studies. This view held that the characteristics of parents would blend together in their offspring, resulting in an average of the two. The more dominant traits in the parents would have a greater effect on the next generation, while the weaker ones would be diluted out.:

Blended inheritance is an outdated concept that has been largely supplanted by more current genetic models. It was a widely held belief during the 19th century, and Darwin initially accepted the theory, as did many of his contemporaries. Darwin, on the other hand, observed the features of various species, and he noticed that certain characteristics did not follow the blended inheritance theory. Instead, Darwin's studies led him to create a new theory of inheritance that he called pangenesis, which hypothesized that all cells of the body are capable of emitting tiny particles of hereditary information called gemmules.

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what is a benign neoplasm originating from adipose tissue called? a. Adenoma
b. Lipoma
c. Fibrosarcoma
d. Adenocarcinoma

Answers

A benign neoplasm originating from adipose tissue is called a lipoma. Lipomas are slow-growing, noncancerous tumors that arise from fat cells and are the most common type of soft tissue tumor.

They can occur anywhere in the body where fat tissue is present, and they usually present as small, soft, painless lumps under the skin. Lipomas are usually diagnosed through physical examination and imaging tests such as ultrasound or MRI. Although they are generally harmless, lipomas may cause discomfort or cosmetic concerns if they grow too large. In most cases, lipomas do not require treatment, but they can be surgically removed if necessary. Lipomas have a very low risk of becoming cancerous, but in rare cases, they can develop into liposarcomas, a type of malignant tumor that requires more aggressive treatment.

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Based on the information you read and your knowledge of early earth write one or two sentences describing environmental conditions in which the first cells likely emerged. How would these cells have survived?

Answers

Answer:

Explanation:

The earliest cells were unstable chemical systems that survived by combining a handful of shaky carbon-based assemblies, researchers say. All life on Earth is based on carbon.

The sickle cell allele is more likely to have higher prevalence in populations where:
a. Malaria is present
b. Malaria is not present
c. Antibiotics are available
d. Antibiotics are not available

Answers

The sickle cell allele is more likely to have higher prevalence in populations where malaria is present. Option (a)

This is because individuals who are carriers of the sickle cell allele are more resistant to malaria. Malaria is caused by a parasitic infection that is carried by mosquitoes. When the parasites infect red blood cells, they require a specific type of hemoglobin, the protein that carries oxygen in red blood cells, to reproduce.

Individuals who are carriers of the sickle cell allele have a different form of hemoglobin, which makes it more difficult for the parasite to reproduce, providing some protection against malaria. Therefore, in areas where malaria is prevalent, the sickle cell allele provides a survival advantage and is more likely to be passed down through generations.

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_refers to a balanced ecosystem

Answers

Equilibrium I believe is the correct answer

Imagine that you are one of the U.S. representatives in charge of deciding whether or not this mosquito receives approval to be released. Describe what concerns or questions you would want answered about the mosquito.

Answers

Answer:



As a U.S. representative tasked with deciding whether or not to approve the release of the mosquito, I would have a number of concerns and questions that I would want answered before making a decision. Some of these concerns and questions might include:

What is the potential impact of this mosquito on the local ecosystem? Could it disrupt existing food chains or harm other species in the area?
How effective is the genetic modification in preventing the spread of disease? Are there any potential unintended consequences of this modification?
What are the potential risks to human health associated with the release of these mosquitoes? Could they carry any new diseases or cause allergic reactions?
What measures are in place to prevent the mosquitoes from spreading beyond the intended release area? Are there adequate controls in place to prevent the mosquitoes from becoming invasive?
What is the timeline for evaluating the effectiveness of the program? How will success be measured, and what benchmarks will be used to determine whether the program is working as intended?
How will the release of these mosquitoes be communicated to the public? Will local residents be consulted and informed of the potential risks and benefits of the program?

Overall, my primary concern would be ensuring that the release of these mosquitoes is conducted in a safe and responsible manner, with careful consideration of the potential impacts on both the local ecosystem and human health. I would want to carefully review all available data and research, consult with experts in the field, and ensure that appropriate safeguards are in place before making a decision on whether or not to approve the release of these mosquitoes.

describe how hormones work and explain why they are important?.
Give at least one example in your answer
6 marks​

Answers

Answer:

Hormones are molecules produced by the endocrine system that send messages to various parts of the body. They help regulate your body's processes, like hunger, blood pressure, and sexual desire. While hormones are essential to reproduction, they are fundamental to all the systems of your body.

what is influenced only by heredity and not environmental factors? Can someone plz help me!!!


a.

obesity

b.

diabetes

c.

heart disease

d.

muscular dystrophy

Answers

Answer:

B

Explanation:

Obesity is cause by accumulating fat, Heart disease is not hereditary, and muscular dystrophy an be caused by stress according to the BBC

The answer is D.
Obesity can be caused by low metabolism, bad diet, and lack of exercise. There are two kinds of diabetes. It doesn’t specify which type though. Type 1 diabetes is hereditary, but type two can be caused by bad diet and lack of exercise. Heart disease can be caused by many things, from stress to (once again) not taking care of your body.

According to scientists, why have organisms on earth become more complex?

Answers

Answer:

Researchers have found evidence which suggests that evolution drives animals to become increasingly more complex.

Explanation: i looked this up....

Guys pls help !!!!!!!

Guys pls help !!!!!!!

Answers

Answer:

B. Insulin

Explanation:

Insulin controls blood sugar

viruses and cells are different in many ways. in which of these ways are viruses and cells most similar?

Answers

Answer:

viruses and cells are different in many ways. in which of these ways are viruses and cells most similar?

Explanation:

espero ter ajudado boa noite

The graph shows the supply and consumption of forests when the consumption rate and population growth rate are both low.
what does the graph predict for the future? A Less air pollution.
B Forest overgrowth.
C Reduced demand.
D Resource depletion.

Answers

The graph predict resource depletion because the supply and consumption of forests when the consumption rate and population growth rate are both low.

What are the consequences of the depletion of natural resources?

The consequences of this ecological excess are increasingly evident, with imbalances such as the extinction of species, scarcity of fresh water, soil erosion, loss of biodiversity and global warming.

Reaching this limit means that all the resources used for the survival of humanity are depletion and we are in “debt” to the planet, in this case it is the graphic representation of this depletion.

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How does genetic variation create diversity?

Answers

Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.

Can Please please help

Can Please please help

Answers

Answer:

You're right, D is Correct

Explanation:

I had this question a couple days ago

Answer:

See below ~

Explanation:

Evaluating the statements

Pea plants can only have tall or short stems. [correct !]A dark brown dog describes part of its phenotype. (visible features) [correct !]A bb individual has two recessive alleles. (recessive alleles are represented by lowercase letters) [correct !]All of the statements are correct

all four carbon atoms of oxaloacetate are labeled with radioactive 14c. the labeled oxaloacetate is incubated with all of the enzymes, substrates, and cofactors necessary for the citric acid cycle (cac). after one round of the cac, where do you expect to find the radioactive carbons?

Answers

After one round of the cac,  the radioactive carbons are found in All four Carbon.

With an atomic nucleus made up of 6 protons and 8 neutrons, carbon-14, often known as radiocarbon, is a radioactive carbon. The radiocarbon dating technique was developed by Willard Libby and colleagues to date samples from anthropology, geology, and hydrogeology on the basis of its existence in organic molecules. At the University of California Radiation Laboratory in Berkeley, California, Martin Kamen and Sam Ruben made the discovery of carbon-14 in February of 1940. Franz Kurie has hinted to its possibility in 1934. There are three carbon isotopes that exist naturally on Earth, the most abundant of which is carbon-12, which accounts for 99% of all carbon. The chemical characteristics of the many carbon isotopes are little different from one another. A method known as carbon labeling uses this similarity in chemical and biological research:

Question

all four carbon atoms of oxaloacetate are labeled with radioactive 14c. the labeled oxaloacetate is incubated with all of the enzymes, substrates, and cofactors necessary for the citric acid cycle (cac). after one round of the cac, where do you expect to find the radioactive carbons?

A) all four carbon atoms.

B) no pattern that is predictable from the information provided.

C) none of its carbon atoms.

D) the keto carbon and one of the carboxyl carbons.

E) the two carboxyl carbons.

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