Sex Determination Flashcards
(7 cards)
1
Q
What is a gamete ?
A
Another name for a sex cell
2
Q
Name the two sex cells
A
Egg and sperm
3
Q
Why do each of the sex cells only have 23 chromosomes?
A
Each human has 46 chromosomes, and so when the egg and sperm meet each cell only has 23 to evenly share their genes
4
Q
The egg cells pair of chromosomes pair is:
A
XX
5
Q
The sperm cells chromosomes pair is:
A
XY
6
Q
List two examples of things which effect how we look:
A
Genetic variation
Environmental variation
7
Q
Define gene
A
A short length of a chromosome that codes for a characteristic
