A person who is homozygous for the X chromosome is female.
Women have two X chromosomes, which means they are homozygous for the X chromosome - the word homozygous means that they have 'two chromosomes of the same kind.' Men have different types of chromosomes - XY.
There are approx 100 billion
The carpals belong to appendicular skeletal system
Really high temperatures cause the enzyme to denature.
Its autotrophs, they are the first level of the food pyrimid
