Human's have 22 pairs of autosomes. Females have two copies of the x-chromosome.
Answer:
The sun and the earth?
Explanation:
I'm pretty sure that's right, since earth orbits the sun.
Crossing over is the main event in meiosis and heredity as it leads to genetic variation.
<h3>What is genetic variation?</h3>
Genetic variation is the changes that take place in the genes of individuals that can lead to the formation of new characters.
it generally occurs in meiosis specifically during crossing over.
Thus, it can be concluded that crossing over between non-sister chromatids during meiosis is significant in heredity as it leads to genetic variation.
For more details regarding crossing over, visit:
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Answer:
Cancer is essentially uncontrolled mitosis of specialized cells.
Explanation:
As you said, cancer can control in any region of the body. As a matter of fact, a cancerous cell is produced in your body every 30 minutes and your immune system locates and kills it. Cancer is unpredictable and can happen in any specialized cell.