Answer:
D. Aa
Explanation:
Given:
Jill (mother) is heterozygous for gene A --------- i.e Jill = Aa
Jack (father) who is homozygous recessive for gene A-------- i.e Jack = aa
Now if both cross and fertilization occurs, we have:
A a
a Aa aa
a Aa aa
The offsprings are (Aa, Aa, aa, aa)
Nondsijunction is the inability of homologous chromosomes to seperate properly during cell division. Now, we were told that this fertilization undergone nondisjunction in meiosis 1. Hence, both homologous chromosome move into the same daughter cells instead of different daughter cells because separation of homologous chromosome does not occur properly.
Therefore the result of these fertilization of a normal haploid sperm with an egg that had undergone nondisjunction in meiosis yields offspring with genotype Aa of their Mother (Jill).
Answer:
The correct answer is "True".
Explanation:
The zebra mussel is a small animal that lives near freshwater zones, just like the ones present at the Hudson River of New York. In this place is where zebra mussel was first detected in May 1991. However, it had been traced that zebra mussel is originally native to the Black and Caspian Seas of Asia. It is believed that zebra mussel arrived to New York in the mid-1980s in the ballast water of ocean-going ships that came from Europe.
One of the main functions lipids do is storing energy. If a person eats excessive amount of food, lipids help store the energy in the form of fat molecules in the body to use later.
Hope this helps!
