It’s the first choice because the C at the end does not pair with anything, it was an extra pair that was made
Answer:
With respect to the composition of DNA, in an analysis it can be found that the proportions of nucleotides are A + C = G + T (option a).
Explanation:
The proportion of nucleotides in a DNA molecule can be established according to the sequence of these nucleotides on both complementary strands, since the purinic bases of one strand are complemented by the pyrimidinic bases of another:
- <em>Adenine is complemented with Thymine A=T</em>
- <em>Guanine is complemented with Cytosine G=C</em>
From this we can deduce that in a DNA molecule with two chains there will be the same amount of adenine and thymine, as well as the same number of guanine with respect to cytosine, so:
<em> A + C = G + T</em>
An example of this would be a known DNA molecule (hypothetical), with 5 molecules of Adenine and 7 molecules of Guanine. In this case there are 5 Thymines, complementary with Adenine, and 7 Cytosines like Guanine:
<em> A + C = G + T</em>
<em> 5 + 7 = 7 + 5</em>
Answer:
The correct answer is A. Stability
Explanation:
In life span development patterns of growth, change, and stability are examined which occurs during the life span of a person. It is very important to study life span development because it provide information about how our brain develops and at what stage it becomes fully mature.
This maturity research can be used by lawyers to prove that a person is totally responsible for the offense he/she committed or not. Physical, social, personality and cognitive development are deeply studied in the area of lifespan development. So the correct answer is A.
I think <span>climate change</span>
A chemical reaction happens
