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Flashcards in Cell Division Deck (30)
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1

-game (reproduction cell division
- 4 different cells from 1 original

Meiosis

2

Growth and normal metabolic roles

G1

3

DNA replication

S

4

Growth and preparation for mitosis

G2

5

Each new strand has one old and one new strand

Semiconservative

6

-DNA + proteins = form of DNA in non dividing cells

Chromatin

7

Segments of chromatin that condense during prophase

Chromosome

8

-1/2 of a replicated chromosome

Chromatid

9

Chromosome condense and nuclear envelope breaks down. Spindle fibers grow from centrioles and migrate to opposite poles of cell

Prophase

10

Chromosomes lie along midline of cell. Some spindle fibers attach to kinetochores. Fibers are aster attach to plasma membrane

Metaphase

11

Chromosomes divide in two. Spindle fibers pull sister chromatids to opposite poles of cell. Each poor (future daughter cell) now has an identical set of genes

Anaphase

12

Chromosomes gather at each pole of cell. Chromatin decondenses. New nuclear envelope appears at each pole. New nucleoli appear in each nucleus. Mitotic spindle vanishes

Telophase

13

Division of cytoplasm

Cytokinesis

14

Phase of meiosis where DNA replicateds

Interphase

15

Phase of meiosis DNA exchange

Meiosis

16

Phase of meiosis. Seep ration of sister chromatids

Meiosis 2

17

Tight pairing of homologous chromosomes

Synapsis

18

Chromosomes exchange segments of DNA -> creates new combination of genes

Crossing over

19

-somatic cell division
-2 identical cells from 1 original

Mitosis

20

Transmission of genetic characteristics from parent to offspring

Heredity

21

Segment of DNA that codes for RNA/protein

Gene

22

Different form of gene that produces alternative form of the same trait

Allele

23

Trait is expressed

Dominant

24

Trait is only expressed if no dominant allele is present

Recessive

25

2 identical alleles (bb)

Homozygous

26

2 different alleles (Bb)

Heterozygous

27

Alleles present for a particular trait

Genotype

28

Observable train

Phenotype

29

More than one dominant allele, both are expressed

Co-dominance

30

Traits carried on X chromosomes
Results in phenotype in males and females

Sex linkage