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
