Lab 14:Mitosis and meiosis

Question 1

_______ and _________ are the processes by which cells reproduce.

Answer 1

Mitosis, cytokinesis

Question 2

Mitosis reproduces the _______ and cytokinesis ________ the cytoplasm.

Answer 2

Nucleus, subdivides

Question 3

Four phases of mitosis

Answer 3

Prophase, metaphase, anaphase, telophase

Question 4

The period of time between nuclear division.

Answer 4

Interphase

Question 5

Three phases og interphase

Answer 5

G1, S, and G2

Question 6

During the _____ phase, the cell grows by replacing the cytoplasm and organelles.

Answer 6

G1

Question 7

During the ____ phase, the DNA is replicated so the chromosomes consist of two chromatids.

Answer 7

S

Question 8

During the ____ phase, cell growth continues, proteins are synthesized, and the centrioles are replicated.

Answer 8

G2

Question 9

The uncoiled DNA in the nucleus when the cell is undergoing its normal activity. Its coils form the chromosomes.

Answer 9

Chromatin

Question 10

The rod shaped structures of DNA present in the cell during cell division.

Answer 10

Chromosomes

Question 11

The two identical strands of DNA which form a chromosome after DNA replication. Separated into two different cells during mitosis.

Answer 11

Chromatids.

Question 12

The number of chromosomes found in eggs or sperm.It is one half the diploid number of chromosomes. 23 in humans

Answer 12

Haploid

Question 13

Having two haploid sets of homologous chromosomes. The normal number of chromosomes in body cells. Humans have 46.

Answer 13

Diploid

Question 14

Phase where chromosomes condense from chromatin and the cell membrane disappears.

Answer 14

Prophase

Question 15

Phase where chromosomes line up along the cell’s equator.

Answer 15

Metaphase

Question 16

Phase where sister chromatids on each chromosome separate, and begin to move towards the poles of the cells.

Answer 16

Anaphase

Question 17

Phase where chromosomes reach the poles of the cell, begin to unwind, and then assume the form of chromatin.

Answer 17

Telophase

Question 18

Phase where the division of the cytoplasm is not part of mitosis, but it usually occurs at the same time. Here, the cells divides in half. Each half receives approximately half of the cytoplasm.

Answer 18

Cytokinesis

Question 19

_________ separates the homologous chromosomes into two different cells.

Answer 19

Meiosis I

Question 20

__________ separates the chromatid pairs of the chromosomes into different cells.

Answer 20

Meiosis II