X And Y Chromosomes Flashcards
1
Q
What chromosome causes male characteristics
A
Y chromosomes
2
Q
What do your chromosomes control
A
Whether you are male or female
3
Q
What chromosomes do women have
A
All women have two X chromosomes
4
Q
What does the two XX combination allow
A
It allows female characteristics to develop
5
Q
What chromosomes do all men have
A
Men have X and Y chromosomes
6
Q
What happens when making sperm
A
The X and Y chromosomes are drawn apart on the first division in meiosis
7
Q
What is the chance of a sperm cell getting an X-chromosome and a Y-chromosome
A
50% for each one
8
Q
What happens when making eggs
A
The original cell has two X-chromosomes, so all eggs have one X-chromosome
9
Q
What do the generic diagrams show
A
The possible combination of gametes
