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Lorico [155]
3 years ago
7

The Jurassic is a period of what era?

Biology
1 answer:
swat323 years ago
6 0
The Jurassic is a period of Mesozoic.
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Which of the following investigators was (were) responsible for the following discovery? In DNA from any species, the amount of
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Answer :Erwin Chargaff   a Biochemist

Explanation:

He formulated the base paring of double helix of DNA. He reasoned that since the percentage of four  DNA  bases are of this proportions in human;

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Then,  the amount of adenine will always be equal to thymine,

And the amount of Guanine equals to cytosine based on this percentages of distribution.  

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His second rule is that the DNA composition, in the relative amount of the four bases Adenine, Thymine, Cytosine and Guanine varies in proportion from one organisms to another. And this is the basis of molecular diversity.

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