Question

hii fill in the blanks please :)

Use the image below, answer the questions. 5' 3' D E F А B What is the orientation of the strand of DNA at location A? What is the orientation of the strand of DNA at location B? Click Save and Submit to save and submit. Click Save All Answers to save all ansur

Answer 1

1) Both strands of DNA are complementary to each other and complementary strands are antiparallel, that is one strand has 5` to 3` polarity and the other strand has 3` to 5` polarity.

so orientation at A - 3`

2) Both strands of DNA are complementary to each other and complementary strands are antiparallel, that is one strand has 5` to 3` polarity and the other strand has 3` to 5` polarity. so orientation at B is 5`

3) at C helicase enzyme is acting to unwind DNA.

Helicase

4) The unwinding of DNA by helicase enzyme can cause supercoiling in the double-stranded DNA this is removed by topoisomerase enzyme.

so the enzyme at D is Topoisomerase.

DNA synthesis occurs in the 5` to 3` direction.

the strand which has the polarity 3` to 5` in the direction of movement of the replication, the DNA synthesis is continuous and it the template strand for leading strand.

In the other strand with polarity 5` to 3` in the direction of movement of the replication, the DNA synthesis is not continuous and it the template strand for lagging strand.

5) leading strand

6) lagging strand.