Question 1

Which of the following best describes the main purpose of mitosis in multicellular organisms?

Accepted Answer

To generate two genetically identical daughter cells for growth, repair, and asexual reproduction

Question 2

During which phase of the cell cycle does DNA replication occur, and what is the state of the chromosomes after this phase?

Accepted Answer

S phase; chromosomes are replicated and consist of sister chromatids

Question 3

A plant cell is observed forming a cell plate during division. Which process is occurring, and what is the outcome?

Accepted Answer

Mitosis; two genetically identical daughter cells are produced

Question 4

What is the role of histones in DNA packing, as illustrated in the provided images?

Accepted Answer

Histones are proteins that help coil and condense DNA into chromosomes

Question 5

Which equation correctly represents the diploid chromosome number in humans, given that $$n = 23$$?

Accepted Answer

$$2n = 46$$

Question 6

A cell with 10n chromosomes is described as:

Accepted Answer

Decaploid

Question 7

Which of the following best explains how cells conserve their genetic information during mitosis?

Accepted Answer

By precisely replicating DNA and separating sister chromatids into two identical cells

Question 8

In which phase of mitosis do spindle fibers attach to the kinetochore and chromosomes align at the cell's equator?

Accepted Answer

Metaphase

Question 9

What is the significance of the centromere during mitosis?

Accepted Answer

It holds sister chromatids together until they are separated during anaphase

Question 10

Which of the following is NOT a function of mitotic cell division?

Accepted Answer

Production of gametes

Question 11

Asexual reproduction produces offspring that are:

Accepted Answer

Genetically identical to the parent

Question 12

Which structure is responsible for separating sister chromatids during anaphase?

Accepted Answer

Mitotic spindle fibers

Question 13

If a mutation occurs during DNA replication in the S phase, what is the most likely consequence for the daughter cells?

Accepted Answer

Both daughter cells will have identical mutated DNA

Question 14

Which of the following best describes homologous chromosomes?

Accepted Answer

Chromosomes that have the same sets of genes, one inherited from each parent

Question 15

During which phase of mitosis does the nuclear envelope begin to reform and the cell start to divide?

Accepted Answer

Telophase

Question 16

Which of the following is true about the cell cycle?

Accepted Answer

Interphase includes G1, S, and G2 phases and is not part of mitosis

Question 17

Which real-world scenario is an example of asexual reproduction?

Accepted Answer

A sea star regenerating a lost arm

Question 18

What is the outcome of cytokinesis in animal cells?

Accepted Answer

Formation of a cleavage furrow that separates the two daughter cells

Question 19

Which phase of mitosis is characterized by chromosomes condensing and the nuclear envelope disappearing?

Accepted Answer

Prophase

Question 20

If a human cell starts mitosis with 46 chromosomes, how many chromosomes will each daughter cell have after mitosis?

Accepted Answer

46

Cellular Reproduction and the Cell Cycle: Mitosis and Chromosome Dynamics

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