X And Y Chromosomes Flashcards
1
Q
How many pairs of chromosomes in every body cell?
A
23
2
Q
How many of the matched pairs of chromosomes control characteristics?
A
22
3
Q
What are the 23rd pair of chromosomes labelled as?
A
XX or XY
4
Q
What chromosomes fo males have?
A
XY
5
Q
What chromosome do females have?
A
XX
6
Q
What are the chances each sperm cell gets an X chromosome?
A
50%
7
Q
What are the chances a sperm cell gets a Y chromosome?
A
50%
8
Q
What do genetic diagrams show?
A
Possible combinations of gametes
9
Q
2 types of genetic diagram
A
Punnet square
Genetic diagram
