50 POINTS 4. If a DNA molecule has 40% Cytosine, what percent of it would be Adenine?

The possibility of Adenine=40% and Thymine=60% is only in single stranded DNA molecule. In the question, the DNA sample referred is a single stranded DNA. If guanine=10% as guanine will always pair with cytosine, i.e. cytosine is also 10% then adenine and thymine accounts 80% as adenine will always pair with thymine.

Explanation:

20%

Explanation: Cytosine has always the same amount as Thymine. If there is 30% of Adenine, then there would be 30% cytosine, leaving 40% left over.

Adenine and guanine are always the same amount, so you get 40% and divide it by 2, so it is 20% of adenine.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

archaebacteria are found in in forest soil.

hope i spelled it right lol

hope i

-lavira: )