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krok68 [10]
3 years ago
10

Why did mendel record the results of so many plant crosses?

Biology
1 answer:
Gre4nikov [31]3 years ago
7 0
<span>The reason why Mendel recorded the results of so many plant crosses is that he wanted to demonstrate how certain genetic traits are expressed in different generations. This way he could demonstrate what traits are dominant or recessive in plants.</span>
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Which statement represents photosynthesis?
BlackZzzverrR [31]

Answer:

Sunlight plus carbon dioxide and water make plant food.

Explanation:

I just did this question and got it right. That's how I know this is the answer. Good luck everyone.

4 0
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Which of the following investigators was (were) responsible for the following discovery? In DNA from any species, the amount of
Zarrin [17]

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;

                                  Adenine=30.9% and Thymine =29.4%;

                                  Guanine=19.9% and Cytosine =19.8%

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.  

(Adenine and Guanine are large, molecule of Purines, while thymine and Cytosine are Pyrimidine)  

 

He concluded (although scientist believed, he did not explicitly stated this) that this should be the base paring patterns in DNA molecule. This is the first Chargaff Rule.

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.

6 0
3 years ago
Is it true that there is no way to enlarge a penis as it doesn't have any muscle?
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6 0
3 years ago
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The answer is Walter Hess

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Anterior and superior.
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3 years ago
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