In a series of two point maps you find that genes A and B map at 30 map units apart, A and C map at 15 map units apart and B and C map at 45 map units apart. What is the correct order of the genes?

Explanation:

Given

As given: A and B are 30 map unit apart

A and C are 15 map unit apart

B  and C are 45 map unit apart

So the sequence of genes : according to the map unit distance is:

C-A-B

C-15-A-30-B

C-A=15

A-B=30

C-B= 45.

correct order of genes is C-A-B .

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

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.