CB3d Inheritance Flashcards
1
Q
Sex chromosome
A
A chromosome that determines the gender of an organism
2
Q
Females have two __ chromosome
A
X (XX)
3
Q
Males have one __ and one __ chromosomes
A
X and Y (XY)
4
Q
In humans, whic gamete is responisble for determining the sex of the offspring?
A
male gamete (the sperm)
5
Q
Explain why about half the population in the UK female
A
because there is a 50% chance that sperm will carry an X sex chromosome
6
Q
To inherit Cystic Fibrosis, an organism must have two…
A
homozygous reccessive alleles
