Which statement accurately describes how identification of individuals through the use of genetic engineering is possible?

1 answer:

7 0

The answer is A. The Y chromosome doesn't experience crossing-over.

The crossover of chromosomes is the exchange of genetic material between homologous chromosomes. In males, X and Y chromosomes pairs but they cannot exchange genetic material except at the ends of the chromosomes called pseudoautosomal regions. So, greatly, the Y chromosome doesn't experience crossing-over.

Through the process of elimination:
B. A mother gives X chromosome and a father gives Y chromosome to the son.
C. The mitochondria cannot be passed in the nucleus of a cell since it is another organelle.
D. It is thought that mitochondria is passed only from mother to her offspring, so they cannot vary greatly.

You might be interested in

What are usually the first photosynthetic organisms to colonize during primary succession?

vesna_86 [32]

Lichens are the photosynthetic organisms.

6 0

2 years ago

True or False: Florida manatees are doing well throughout their range.

laiz [17]

Answer:

false

Explanation:

im not sure if this is the entire question but from what I can see, I would prove this false

4 0

3 years ago

5. Easy Bio question: Describe one example of vestigial structures that you can find among the caminalcules. These are structure

ikadub [295]

Ear muscles and tailbones are examples of vestigial structures found among the Caminalcules.

7 0

3 years ago

Read 2 more answers

Which scientists was the first to suggest that growth of cancerous cells was a result of abnormal chromosomes?

maks197457 [2]

Answer:

The correct answers are B and C. Walter Sutton and Theodor Boveri were the first to suggest that growth of cancerous cells was a result of abnormal chromosomes.

Explanation:

The chromosomal theory of inheritance is a scientific theory that relates chromosomes with the transmission of inheritable characters. It is also called the chromosomal theory of Sutton and Boveri in honor of the two people who independently developed it in 1902, Theodor Boveri and Walter Sutton. This theory states that the alleles, the Mendelian genetic factors, are on chromosomes.

Theodor Boveri and Walter Sutton independently developed the chromosome theory in 1902, Boveri, studying embryonic development in sea urchin and Sutton in this work on meiosis in grasshopper.

Sutton and Boveri's proposition in 1902 that chromosomes are the factors of Mendelian inheritance was controversial until its demonstration in 1915 by the work of Thomas Hunt Morgan in the Drosophila melanogaster fly.

6 0

3 years ago

Arturiano [62]

Answer:

The best explanation for the increased lymphocyte levels in Kaya is that she was not tissue typed prior to her surgery, and her body is mounting an immune response.

Explanation:

When performing an organ transplant, it must be verified whether the organ to be transplanted is compatible -by tissue typing- with the recipient, since it is recognized as a foreign body by the body and can be rejected.

One of the immunological responses to organ rejection is called cell rejection, involving T-helper and cytotoxic lymphocytes.

It is very likely that in Kaya's case the tests have not been performed correctly, and she is experiencing rejection of the organ she received. The progressive increase in lymphocytes may be an indication of this.

The other options are not possible because:

Administering antibiotics should not raise lymphocyte levels.
There is no evidence of antigen attack.
Immunosuppressant drugs do not increase lymphocyte count.

7 0

3 years ago