Answer:
Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.
<span>b. a cell takes in DNA from outside the cell.</span>
The DV is measured for results
Answer:
whorls, organs, symmetry
Explanation:
Some important traits that influence the reproductive success of a flower include: the presence or absence of <u>whorls</u>, the fusion of <u>organs </u>to one another, and the overall <u>symmetry </u>of flowers
Answer:
Electrons are many thousand times smaller than the nucleus and negatively charged.
Explanation:
Electrons possess negligible mass and carry a negative charge.
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