Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
gametes
|
Haploid reproductive cell. 2 gametes, most often egg or a sperm, join in fertilization to form a zygote.
|
|
homologous chromosomes
|
Similarly constructed chromosomes with the same shape and contain genes for the same traits.
|
|
synapsis
|
Pairing of homologous chromosomes during prophase I of meiosis.
|
|
interkinesis
|
Period of time between meiosis I and II during which no DNA replication takes place.
|
|
endometrium
|
Lining of the uterus, which becomes thickened and vascular during the uterine cycle.
|
|
zona pellucida
|
Jelly coat around the egg. Acrosome enzymes digest zona pellucida as acrosomes extrude filament that attaches to receptors located in vitelline membrane.
|
|
cleavage
|
Cell division without cytoplasmic addition or enlargement. Occurs during first stage of development.
|
|
fertilization membrane
|
The vitelline membrane becomes fertilization membrane of sperm and egg fuse. Any other sperm are prevented from entering.
|
|
blastocoel
|
fluid-filled cavity of a blastula.
|
|
trophoblast
|
Outer membrane surrounding the embryo in mammals.
|