Question

question 3 (1 point)
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what is cytokinesis?
a) creation of two new nuclei
b) splitting of the cytoplasm via cell plate formation or cleavage
c) repackaging of chromosomes into membrane bound compartments
d) all the above
question 4 (1 point)
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in humans, how many chromosomes does each human parent contribute during fertilization?
a) 16
b) 23
c) 42
d) 46

Explanation:

• Question 3: Cytokinesis is the process where the cytoplasm of a parental cell is divided into two daughter cells. In plant cells, it occurs via cell - plate formation, and in animal cells, via cleavage. The creation of two new nuclei (a) is karyokinesis (part of mitosis or meiosis), and repackaging of chromosomes into membrane - bound compartments (c) is also related to nuclear division.
• Question 4: Humans have a diploid number (\(2n\)) of chromosomes equal to 46. During fertilization, each parent contributes a haploid (\(n\)) set of chromosomes. Since \(2n = 46\), then \(n=23\).

Answer:

• Question 3: B. splitting of the cytoplasm via cell plate formation or cleavage
• Question 4: B. 23