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:
A, C and D
Explanation:
It creates no ionic bonds because it would need certain changes to it.
Im not so sure about E because the configurations are very similar.
And A seems to make sense because its essential to life itself.
Answer:
he human body contains many salts, of which sodium chloride is the major one, making up around 0.4 per cent of the body's weight at a concentration pretty well equivalent to that in seawater.
Explanation:
A normal range in adults is generally considered to be 4.35 to 5.65 million red blood cells per microliter (mcL) of blood for men and 3.92 to 5.13 million red blood cells per mcL of blood for women. In children, the threshold for high red blood cell count varies with age and sex.
Answer:
auxins are the hormones responsible for phototropism, the growth of a plant toward the light.
Explanatio
