"Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA, can you use it to predict the amounts of all four nucleotide bases when you only know the amount of one type of base? Approximately 21% of the human genome is comprised of nucleotides containing C. Given this information, calculate the percentage of the human genome that is comprised of nucleotides containing G, T, and A."

C- 21%

G- 21%

A - 29%

T - 29%

Explanation:

Four nucleotides make up the DNA molecule, and the sum of all four nuceleotides must equal 100% i.e.

A + G + C + T = 100%

If A -T and G - C pairs in the DNA, it means they each nucleotide must contain same proportion as its complementary pair. Therefore, if C is 21%, G is Al 21%.

Hence, 21 + 21 = 42%

We are left with the proportion of the other two nucleotides (A and T). We find it by saying 100 - 42 = 58%

Hence, if A and T must contain equal proportion, each will contain 58/2 = 29%.

The proportions of the four nuceleotides are 21, 21, 29 and 29 % for C, G, A and T respectively.

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the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.