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Darya [45]
3 years ago
15

The meselson-stahl experiment demonstrated that DNA replication is semi conservative in the figure semi conservative replication

is illustrated by​
A. amix of these methods, depending on the cell type
b. b
c. d
d. a

Chemistry
2 answers:
ElenaW [278]3 years ago
8 0

Answer:

Your correct answer is d. a

Explanation:

Vlad1618 [11]3 years ago
7 0

Answer:

The correct answer will be option-D.

Explanation:

The semi-conservative mode of replication is the common method of replication used by mostly organisms on earth which were demonstrated by the Meselson and Stahl in 1958.

They used the isotopes of the nitrogen which contains extra neuron which makes the nitrogen-heavy and cultured them in bacteria

The experiment concluded that newly replicated double stranded DNA contains one newly synthesized DNA strand which is complementary to another parental strand. Thus new DNA molecule has one parental strand while other newly synthesized strand.

This is best illustrated by the option-D in the figure and therefore is the correct answer.

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See explanation below

Explanation:

In this case, we are having a reaction between an anion and alkyl halide. The carbon 1 of the anion will act as nucleophile and will attack the electrophile, which is 5 carbon chain with the bromine in the third carbon.

Now, the nucleophyle is an alkyne of 3 carbon. According to the description, it should be:

CH₃ - C ≡ C⁻

And the alkyl halide is:

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And the final product after the reaction would be the following:

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However, in the attached picture you can see this better and the mechanism of reaction.

Hope this helps

8 0
2 years ago
Write a balanced molecular equation describing each of the following chemical reactions:
zhannawk [14.2K]

Answer:  CaCO3 = CaO  + CO2

Explanation:

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This is balanced already.

<u> Elem  </u>    <u>Reactant</u>  <u>Products</u>

Ca                1                  1

C                  1                   1

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3 years ago
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