Meiosis

Question 1

Question 1

Revolt · Accepted Answer

Chromosomes are lined up by spindle fibers.: metaphase II; Nuclear envelope forms around each set of DNA.: telophase II; Sister chromatids are pulled apart.: anaphase II; Centromeres move toward the poles of the cell.: prophase II

Question 2

prophase II✔ metaphase IIanaphase IItelophase II

Revolt · Accepted Answer

✔ metaphase II; Chromosomes are lined up by spindle fibers.: metaphase II; Nuclear envelope forms around each set of DNA.: telophase II; Sister chromatids are pulled apart.: anaphase II; Centromeres move toward the poles of the cell.: prophase II

Question 3

prophase IImetaphase IIanaphase II✔ telophase II

Revolt · Accepted Answer

✔ telophase II

Question 4

prophase IImetaphase II✔ anaphase IItelophase II

Revolt · Accepted Answer

✔ anaphase II

Question 5

✔ prophase IImetaphase IIanaphase IItelophase II

Revolt · Accepted Answer

✔ prophase II

Question 6

Explain the relationship between crossing over and genetic variation.

Revolt · Accepted Answer

Crossing over exchanges genetic material between non-sister chromatids during meiosis, creating new combinations of genetic information. This genetic recombination increases variation in the traits passed through generations, so organisms are not genetically identical from one generation to the next.

Question 7

Explain how independent assortment occurs in cells and explain its importance.

Revolt · Accepted Answer

Independent assortment occurs when homologous chromosome pairs align randomly in either of two orientations during Metaphase I of meiosis. The pairs separate independently, producing different combinations of chromosomes in gametes and increasing genetic variation. This is the basis of the second law of inheritance: traits are passed from parents to offspring independently of one another.

Meiosis Answers

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