A DNA molecule containing radioactive thymidi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) $DNA$ replication is semi-conservative. In the first replication cycle,the original $DNA$ molecule (with radioactive strands) produces two $DNA$ m

Vedclass · Accepted Answer

Two

Vedclass · Answer

(B) $DNA$ replication is semi-conservative. In the first replication cycle,the original $DNA$ molecule (with radioactive strands) produces two $DNA$ molecules,each having one radioactive strand and one non-radioactive strand. In the second replication cycle,these two $DNA$ molecules produce four $DNA$ molecules. Out of these,two will contain one radioactive strand each,and two will be completely non-radioactive. In the third replication cycle,the two $DNA$ molecules that contain radioactive strands will produce two $DNA$ molecules each (total four),but only one strand in each of these four molecules will be radioactive. Therefore,after three cycles,the number of $DNA$ molecules containing radioactive thymidine remains $2$.

$A$ $DNA$ molecule containing radioactive thymidine is allowed to replicate in a non-radioactive environment. What will be the exact number of $DNA$ molecules containing radioactive thymidine after three replication cycles?

Similar Questions

The mode of $DNA$ replication is predominantly ......

$A$ $N^{15}-N^{15}$ $\text{DNA}$ molecule is continuously replicated in $N^{14}$ medium,then what is the percentage of heavy $\text{DNA}$ in the $4^{\text{th}}$ generation (in $\%$)?

Depending upon the chemical nature of the template ($DNA$ or $RNA$) and the nature of nucleic acids synthesized from it ($DNA$ or $RNA$),list the types of nucleic acid polymerases.

$DNA$ repairing is done by

During replication of $\text{DNA},$ Okazaki fragments are formed in the direction of :

Vedclass Test Series

Exam Paper Generator

Online Exam Module