Question 1

Which of the following best describes a key difference between cell division in prokaryotes and eukaryotes?

Accepted Answer

Prokaryotes use binary fission, while eukaryotes use mitosis and meiosis.

Question 2

Which of the following is NOT a function of cell division in multicellular organisms?

Accepted Answer

Production of energy through cellular respiration

Question 3

A replicated eukaryotic chromosome consists of which of the following structures?

Accepted Answer

Two sister chromatids joined at the centromere

Question 4

Which two main biochemicals comprise eukaryotic chromosomes, and what is the primary function of each?

Accepted Answer

DNA (stores genetic information) and proteins (provide structural support)

Question 5

During which stage of the eukaryotic cell cycle are chromosomes replicated?

Accepted Answer

S phase

Question 6

Which of the following events occurs during metaphase of mitosis?

Accepted Answer

Chromosomes align at the cell's equatorial plate.

Question 7

Which of the following best explains why crossing over during meiosis increases genetic variation?

Accepted Answer

It results in the exchange of genetic material between nonsister chromatids.

Question 8

A diploid cell with $$2n = 8$$ undergoes meiosis. How many chromosomes will each resulting gamete contain?

Accepted Answer

$$4$$

Question 9

Which of the following is a possible consequence of an error during anaphase I of meiosis?

Accepted Answer

Gametes with missing or extra chromosomes (nondisjunction)

Question 10

Which process is common to both sexual and asexual reproduction?

Accepted Answer

Mitosis

Question 11

In a typical animal life cycle, at which point does meiosis occur?

Accepted Answer

During the formation of gametes

Question 12

Which of the following terms describes a pair of chromosomes that carry genes for the same traits but may have different alleles?

Accepted Answer

Homologous chromosomes

Question 13

Which of the following best describes cytokinesis in plant cells?

Accepted Answer

A cell plate forms to divide the cytoplasm.

Question 14

Which two processes are found in all sexual life cycles?

Accepted Answer

Meiosis and fertilization

Question 15

A scientist observes a cell with chromosomes aligned at the metaphase plate, each consisting of two sister chromatids. The cell then divides, producing two genetically identical cells. Which process did the scientist observe?

Accepted Answer

Mitosis

Question 16

Which of the following scenarios best illustrates independent assortment during meiosis?

Accepted Answer

Homologous chromosomes line up randomly at the metaphase I plate.

Question 17

Which of the following is a correct comparison between mitosis and meiosis?

Accepted Answer

Mitosis produces diploid cells, while meiosis produces haploid cells.

Question 18

A mutation causes a cell to bypass the G1 checkpoint in the cell cycle. Which of the following is a likely consequence?

Accepted Answer

The cell may divide uncontrollably, leading to tumor formation.

Question 19

Which of the following best explains the concept of 'unity within diversity' as it relates to mitosis and meiosis?

Accepted Answer

Both processes share some steps but result in different outcomes, reflecting both unity and diversity.

Question 20

A plant cell undergoes mitosis but fails to complete cytokinesis. What is the most likely result?

Accepted Answer

A single cell with two nuclei (binucleate cell)

Chapter 8: The Cellular Basis of Reproduction and Inheritance – Study Guide

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