Meiosis & Genetics

Question 1

About how many genes are in one chromosome? A: 15, B: 1500, or C:150.

Answer 1

B: 1500

Question 2

Where are chromosomes found in the body? A: in DNA, B: the proteins, or C: the nuclei.

Answer 2

C: The Nuclei

Question 3

what is it called when chromosomes make up a pair? A: Homozygous, B: Homologous, C: Homogeneous.

Answer 3

B: Homologous

Question 4

What does the symbol n represent? A: number of chromosomes, B: number of haploids, C: number of gametes.

Answer 4

A: number of chromosomes

Question 5

What are most cells formed by? A: Prophase, B: Interphase, C: Mitosis.

Answer 5

C: Mitosis

Question 6

During synapsis chromosomes swap pieces of what? A: Fibers, B: Proteins, C: DNA.

Answer 6

C: DNA

Question 7

What do the spindle fibers attach to? A: Centromere, B: Sister Chromatids, C: Homologous Chromosomes.

Answer 7

A: Centromere

Question 8

What happens when the cell undergoes cytokineses? A: the cells stay the same, B: the cells divide, C: the cells multiply.

Answer 8

B: The cells divide.

Question 9

What happens in Metaphase 2? A: The chromosomes condense. B: A haploid number of chromosomes line up near the center of the cell, C: the cell goes through cell division.

Answer 9

B: A haploid number of chromosomes line up near the center of the cell.

Question 10

What is one way that meiosis produces non-identical daughter cells? A: During Prophase 1, B: Fertilization, C By crossing over. (Multiple Answers)

Answer 10

A: during Prophase 1 and C: By crossing over.

Question 11

What is a Trait? A: Characteristics such as hair color or eye color. B: DNA segments that control the production of a protein. C: located inside of genes and DNA.

Answer 11

A: Characteristics such as hair color and eye color.

Question 12

What do gametes help do? A: They help the sex cells multiply into more cells. B: They convert the cells into diploids. C: They help maintain the same number of chromosomes from generation to generation.

Answer 12

C: They help maintain the same number of chromosomes from generation to generation.

Question 13

What happens during the crossing over stage? A: Pieces of a chromosome swap with another piece of a chromosome. B: It provides sister chromatids to the chromosomes. C: The chromosomes will attach to the spindle fibers.

Answer 13

A: Pieces of a chromosome swap with another piece of a chromosome.

Question 14

Anaphase 1 does what? A: Increase the number of chromosomes from n to 2n. B: Reduce the number of chromosomes from 2n to n. C: Keep the chromosomes the same number of n.

Answer 14

B: Reduce the number of chromosomes from 2n to n.

Question 15

What does Asexual Reproduction do? A: It will randomly combine gametes.B: The rate of mutations are much faster than sexual reproduction. C: The new individual is identical to the parent.

Answer 15

C: The new individual is identical to the parent.

Question 16

What are the stages of Meiosis? A: Interphase, Anaphase, and Metaphase. B: PMAT and it happens two times. C: PIAT and it happens twice.

Answer 16

B: PMAT and it happens two times.

Question 17

What is the purpose of Meiosis? A: To get a diploid amount of chromosomes. B: To produce enough chromosomes to keep the body moving. C: To produce gametes, or sex cells.

Answer 17

C: To produce gametes, or sex cells.

Question 18

During Meiosis how many daughter cells are produced? A: 4. B: 6. C: 2.

Answer 18

A: 4.

Question 19

What do the cells go through before going through Meiosis and Mitosis? A: Interphase. B: Anaphase. C: Crossing over.

Answer 19

A: Interphase.

Question 20

What does Interphase do? A: Make the cells shrink and get ready for mitosis. B: It makes the cell grow and copy its chromosomes and prepares for division. C: It makes the cells start to flow through the body more frequently.

Answer 20

B: It makes the cell grow and copy its chromosomes and prepares for division.

Question 21

What is the goal of Meiosis 1? A: To add chromatids to the homologous pairs. B: To create new cells. C: To separate homologous pairs.

Answer 21

C: To separate homologous pairs.

Question 22

What happens to the sister chromatids during Meiosis 1? A: They line up towards the middle of the cell. B: They will stay with each other. C: They will split and go to different parts of the cell.

Answer 22

B: They will stay with each other.

Question 23

What is the goal of Meiosis 2? A: To separate the sister chromatids. B: To keep them together and send them onwards throughout Meiosis 2. C: They condense together forming diploids.

Answer 23

A: To separate the sister chromatids.

Question 24

When does Crossing over occur? A: During Interphase. B: During Anaphase 2. C: During Prophase 1.

Answer 24

C: During Prophase 1.

Question 25

What cells does Meiosis occur in? A: Only Non-Reproductive cells. B: In all cells. C: Only Reproductive cells.

Answer 25

C: Only Reproductive cells.

Question 26

Why is Meiosis Important for sexual reproduction to occur? A: It results in the formation of gametes or sex cells. B: It provides chromatids. C: It helps move the DNA from cell to cell.

Answer 26

A: It results in the formation of gametes or sex cells.

Question 27

What is the overall purpose of meiosis? A: To get sister chromatids. B: To create gametes. C: To produce DNA.

Answer 27

B: To create gametes.

Question 28

What is a likely result of crossing over during meiosis I? A: Production of recombinant gametes. B: Decrease in genetic variation. C: Reduction in chromosome number.

Answer 28

A: Production of recombinant gametes.

Question 29

How many cell divisions occur during meiosis? A: 1. B: 3.

C: 2.

Answer 29

C: 2.

Question 30

During meiosis, when does the ploidy (number of sets of chromosomes) get reduced from diploid (2n) to haploid (n)? A: Once Telophase 1 of Meiosis 1 is complete. B: Once Prophase 1 of Meiosis 1 is complete. C: Once Anaphase 1 of Meiosis 1 is complete.

Answer 30

A: Once Telophase 1 of Meiosis 1 is complete.