16. According to the Hardy-Weinberg equation, the genotype frequencies for the three
possible combinations of alleles in a population are described by the ratio p^2: 2pq: q^2.
a) Use this ratio to determine the genotype frequency in a population where p = 0.7 and q =0.3 Show your reasoning. (3 points)

A1A1 =
A1A2 =
A2A2 =

b) Assume that A1 is a dominant allele that codes for purple leaves and A2 is a recessive allele
that codes for white leaves. What will be the frequencies of purple and white phenotypes in
this population? (1 point)

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

i believe the answer is snake.