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