Chapter 3 Meiosis

Question 1

Definition of mitosis

Answer 1

Division of the nucleus of a cell

Question 2

Phases of interphase

Answer 2

G1, S, G2 phases

Question 3

Significance of S phase of interphase

Answer 3

Doubling of DNA

Question 4

Form of DNA in interphase

Answer 4

Chromatin

Question 5

Number of strands of DNA in a human cell

Answer 5

46

Question 6

Phase in interphase when proteins and enzymes needed for cell division are made

Answer 6

G2 phase

Question 7

Phases of mitosis

Answer 7

Prophase metaphase anaphase and telophase

Question 8

Phase in which chromosomes condense

Answer 8

Prophase

Question 9

Number of strands of DNA in one chromosome during prophase

Answer 9

Two

Question 10

Number of centrioles in a centrosome

Answer 10

Two

Question 11

Place on a chromosome with two DNA strands join

Answer 11

Centromere

Question 12

Phase where centromere’s line up along the middle of the cell

Answer 12

Metaphase

Question 13

Part of chromosome where spindle fibers attach

Answer 13

Centromere

Question 14

Miotic spindle is made of these protein structures

Answer 14

Microtubules

Question 15

Phase when the centromere splits

Answer 15

Anaphase

Question 16

Phase during which the nuclear membrane reforms

Answer 16

Telophase

Question 17

Name for the division of the cytoplasm

Answer 17

Cytokinesis

Question 18

Examples of cells that do not undergo mitosis (for all practical purposes)

Answer 18

Red blood cells sperm neuron and cardiac muscle cell

Question 19

Process by which a cell divides into cells with half the number of chromosomes

Answer 19

Meiosis

Question 20

Examples of cells that undergo meiosis

Answer 20

Cells that become sperm or eggs

Question 21

Chromosomes that code for the same traits

Answer 21

Homologous chromosomes

Question 22

Cells that contain homologous chromosomes (two of each)

Answer 22

Diploid cells

Question 23

Longest phase in the cell life cycle

Answer 23

Interphase

Question 24

Number of centrosomes during prophase

Answer 24

Two

Question 25

phase when the nuclear membrane disappears

Answer 25

Prophase

Question 26

Phase when the sister chromatids migrate to the opposite end of the cell

Answer 26

Anaphase

Question 27

Phase when cytokinesis is occurring

Answer 27

Anaphase and telophase