A completely radioactive double-stranded DNA | vedclass

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(D) $DNA$ replication is semi-conservative. $1$. Initially,we have one radioactive double-stranded $DNA$ molecule $(R-R)$. $2$. After the first round

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Half of them do not possess radioactivity.

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(D) $DNA$ replication is semi-conservative. $1$. Initially,we have one radioactive double-stranded $DNA$ molecule $(R-R)$. $2$. After the first round of replication in a non-radioactive medium,two hybrid $DNA$ molecules are formed,each containing one radioactive strand and one non-radioactive strand ($R-N$ and $R-N$). $3$. After the second round of replication,each of these two hybrid molecules produces one hybrid molecule $(R-N)$ and one completely non-radioactive molecule $(N-N)$. $4$. Thus,out of four daughter molecules,two are hybrid (radioactive) and two are non-radioactive. $5$. Therefore,half of the daughter molecules do not possess radioactivity.

$A$ completely radioactive double-stranded $DNA$ molecule undergoes two rounds of replication in a non-radioactive medium. What will be the radioactive status of the four daughter molecules?

Similar Questions

Which of the following statements is incorrect $:-$

At the end of replication,the contribution of nucleotides from mother $DNA$ is . . . . . . percent.

The protein that helps in opening the $DNA$ double helix at the replication fork is .......... .

Give scientific reasons: $DNA$ replication is a semi-conservative process.

Which of the following enzymes is used in the multiplication (replication) of $DNA$?

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