Answer:
IAi
Explanation:
The genotype for O blood is ii. So his mom must have given him an i allele. So he has at least one i allele.
But since his phenotype is A -- he expresses A -- there must be one IA allele. Otherwise, if he had both ii, he would be an O-type blood.
So his genotype must be IAi.
Answer:
Once an organism is beyond a certain size, it cannot get essential molecules into and out of cells solely by diffusion. Diffusion is limited by the surface area to volume ratio of the organism.
Answer:
I don't know what the question is but here is a picture of a knee reflex?
Answer:
The model of the DNA can be related to a zipper. Just like the zipper, the two strands of the DNA are joined together by the hydrogen bonds present between the nucleotides. At the time of replication, the coiling of the two strands is undone just as the zipper is open. The two strands of the DNA open and separate just as the two stands of the zipper open and separate. Each strand can give rise to anew strand.
Just as the opening and closing of the zipper can cause damages in the zipper, just like this replication can cause errors in the DNA which lead to mutations.
Answer:
invasive species threaten biodiversity
Explanation:
they can take up an inoordinate amount of resources that affect people and animals. they are different from reintroducing a species. invasive species are bad for biodiveristy.