Surely if he has blood type O, one parent has to have type O also
Answer:
D. 100%
Explanation:
In humans, males have only one copy of the X chromosome in their cells. Therefore, human males express all the X-linked genes present on their X chromosomes irrespective of the recessive or dominant nature of the allele. This occurs since males do not have one more copy of the X chromosome to carry another allele for the gene. So, all the X-linked alleles present on the X-chromosomes of the human males are expressed.
For example, human males with genotype X^cY and X^hY express colorblindness and hemophilia respectively. Though, human females express these recessive X-linked disorders in homozygous genotype only.
Answer:
Literal tons of oil are required to produce plastic. Oil is a nonrenewable resource, meaning that once it's gone, it's gone forever. It's not just that: plastic isn't recyclable: it takes millions of years for it to go away, and in that time, it can choke animals and teem landfills.
Answer:
your body is attempting to fight it off.
Explanation:
<span>Despite their relatively small size, the kidneys receive about 20% of the heart's blood output for filtration.</span>