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3 years ago

Question 20 pomes)

Biology

1 answer:

umka21 [38]3 years ago

7 0

Selective breeding of plant and animals that exhibit high resistance to disease.

Explanation:

Selective breeding or artificial selection is the process in which two individuals with beneficial traits are crossed to have the desired phenotype in progeny. It uses the process of natural selection in its process.

These are beneficial in the improvement of crops and yields of animals. New plant and animal can be created. This is a form of genetic engineering.

The breeding process does not cause harm to the breeding organisms.

examples of plant selective breeding: broccoli and brussels sprout.

animal selective breeding: large milk yielding cows.

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23. A dog breeder can determine that the sudden

tensa zangetsu [6.8K]

Answer:

(4) is bred and the trait is capable of being inherited

Explanation:

<u>Mutation generally refers to a sudden change to the DNA sequence in the genome of an organism.</u>

Since, DNA is the molecules responsible for heredity and the inheritance of traits by offspring from their parents, a mutation should be inheritable.

<em>Hence, if a sudden appearance of hairlessness in one of the puppies is observed by a dog breeder, he/she can effectively conclude that the situation is caused by a mutation if the affected dog is bred with another dog and the hairlessness is observed in any of the resulting progeny.</em>

Option 4 is the correct option.

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3 years ago

Help!!!!!!!!!!!!plsssss

drek231 [11]

Answer: 8- D

9- C

Explanation: always remember the number above is the atomic number

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2 years ago

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In guinea pigs, the allele for short hair is dominant to long hair. A guinea pig with short hair is crossed to one that has long

Anton [14]

I would choose Option 2

about 50% chance that the dominance is in, but when it is, its dominant, of course.

no other Option can give you a 50% chance

in 1 its always there, in 3 as well, in 4 never

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3 years ago

Read 2 more answers

Consider two very distantly related species, Species A and Species B. These species live in distinct but similar environments an

never [62]

Answer:

convergent evolution

Explanation:

If we have two species that share a similar trait or look alike a lot, but they live in places isolated from each other, and they only have a very distant relation, then it is a case of convergent evolution. This type of evolution occurs with species that are not closely related, but they live in environments where having the same or very similar traits is advantageous. This can often lead to a confusion when looking at the species only on the outside, and it can be very misleading. As an example we can take the sabretoothed predators that existed in the past. Both the smiloden and the thylacosmilus had large saber like teeth, and even their bodies looked very similar, so one would assume that they are closely related, but that was not the case. The smilodon was part of the cat family, while the thylacosmilus was a marsupial, making them very distantly related. They developed same same and some very similar traits because their environment created the evolutionary pressure for those traits to develop as they were advantageous, despite them evolving in totally different places and separately.

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2 years ago

Imagine that a eukaryotic cell carries a mutation that causes the poly(a) tail to rarely be added to the primary transcripts. wh

Liono4ka [1.6K]

Imagine that a eukaryotic cell carries a mutation that causes the poly(a) tail to rarely be added to the primary transcripts. The result of such a mutation will be the primary transcript would likely be less stable, and its transport from the nucleus to the cytoplasm would be affected.

A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

While most mutations are benign, some can be detrimental. A dangerous mutation may lead to a cancerous condition or possibly a genetic problem. Chromosome mutations are yet another type of mutation. The tiny, thread-like structures known as chromosomes, which are found in the cell nucleus, carry genes.

Genetic mutations, which occur as your cells divide and generate duplicates of themselves, are modifications to your DNA sequence. Your DNA teaches your body how to develop and work. Genetic changes may result in diseases like cancer or, in the long run, may enable people to adapt to their environment more successfully.

To learn more about mutation please visit -
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1 year ago