Lab 14:Mitosis and meiosis Flashcards Preview

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Flashcards in Lab 14:Mitosis and meiosis Deck (20):
1

_______ and _________ are the processes by which cells reproduce.

Mitosis, cytokinesis

2

Mitosis reproduces the _______ and cytokinesis ________ the cytoplasm.

Nucleus, subdivides

3

Four phases of mitosis

Prophase, metaphase, anaphase, telophase

4

The period of time between nuclear division.

Interphase

5

Three phases og interphase

G1, S, and G2

6

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

G1

7

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

S

8

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

G2

9

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

Chromatin

10

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

Chromosomes

11

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

Chromatids.

12

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

Haploid

13

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

Diploid

14

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

Prophase

15

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

Metaphase

16

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

Anaphase

17

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

Telophase

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.

Cytokinesis

19

_________ separates the homologous chromosomes into two different cells.

Meiosis I

20

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

Meiosis II