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Phoenix [80]
3 years ago
8

The process of meiosis is responsible for creating much of the genetic variation seen in sexually reproducing organisms. which e

vents in the process of meiosis generate this genetic variability?
Biology
1 answer:
Mrac [35]3 years ago
4 0
The answer is the crossing over part.
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cancerous growths are clonal in origin because cancer cells . multiple choice question. can invade healthy tissues originate fro
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Cancerous growths are clonal in origin because of cancer cells originate from a single cell that has accumulated genetic changes during cell division.

The human body contains several billion cells. Cells are the teeny, tiny building blocks of our tissues and organs. Every one of us was once a single cell. That cell divided into two new cells after internal replication.

Cells become abnormal when the DNA, which holds the instructions needed for cells to operate, is damaged. The cells they make after that will not be similar to healthy ones. Along with having a variety of appearances, they might also possess different traits. The medical word for this kind of abnormal cell proliferation in body tissue, including skin, is dysplasia. As long as there aren't many abnormal cells and our immune system controls them, we won't get sick from them.

Sometimes these cells can vanish on their own. Only when these cells continue to change and start to divide erratically, leading to lumps or growths, does one of the more than 200 diseases recognized as cancer become apparent. These kinds of growths are tumors.

The complete question is:

Cancerous growths are clonal in origin because of cancer cells __________.

multiple choice questions.

(A). can invade healthy tissues originating from a single cell that has accumulated genetic changes during cell division

(B) can migrate to other areas of the body and form secondary tumors at the new sites

(C) can form a tumor that is localized only at one site

To learn more about cancer please click on the given link: brainly.com/question/14336972

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3 0
1 year ago
List the three components that comprises a nucleotides
Cerrena [4.2K]
Nitrogeneous bases
sugar
phosphate group

3 0
3 years ago
What did Ozzie's ancestors come over on? (osmosis jones movie question)
SIZIF [17.4K]
They came over on an <span>umbilical cord.</span>
7 0
3 years ago
Read 2 more answers
Suppose it were possible to conduct sophisticated microscopic and chemical analyses of microfossils found in 3.5-billion-year-ol
soldier1979 [14.2K]

Answer:

The correct answer is option 3. a nucleus.

Explanation:

The first genetic material present in the early organisms were RNA which was present in the microscopic organisms back then 3.5 billion years ago which means it is normal to have RNA in such microfossils chemical analysis.

Since, the nucleus was not present in early life forms of prokaryotes like bacteria. so, it is unusual to find nucleus in the fossils of stromatolite rocks.

Thus, option III is the correct answer.

7 0
3 years ago
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