Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

All of the following statements about DNA replication are true except A DNA replication begins with an RNA primer. B Hydrogen bonds must be broken for replication to occur. C DNA replication begins at the promoter. D Bacterial DNA replication proceeds in a circular fashion. E One half of a new DNA strand must be assembled as small pieces instead of a continuous piece.

All of the following statements about DNA replication are true except 

A

DNA replication begins with an RNA primer.

B

Hydrogen bonds must be broken for replication to occur.

C

DNA replication begins at the promoter.

D

Bacterial DNA replication proceeds in a circular fashion.

E

One half of a new DNA strand must be assembled as small pieces instead of a continuous piece.

 

Grade:12

2 Answers

Vikas TU
14149 Points
10 months ago
Dear student 
DNA replication begins at certain fixed unique points and is called origin.So, the correct answer is 'DNA replication begins at the promoter'.
ankit singh
askIITians Faculty 614 Points
10 months ago
A. Initiation of DNA synthesis always requires a smaller segment of RNA called RNA primer. It is synthesized by enzyme primase.
B. The two strands of DNA  double helix unwind with the help of DNA unwinding protein, called helicase. The unwinding occurs as this protein begins its binding with DNA strands, thus, breaking the hydrogen bonds between complementary nitrogenous bases.
C. DNA replication begins at certain fixed unique points and is called origin.
D. The chromosomes of bacteria are circular. Bacterial DNA replication occurs in a bidirectional way and proceeds with two replication forks in a circular manner.
E. Only one strand of DNA shows continuous replication which is called the leading strand. The other strand, called the lagging strand, replicates in a discontinuous manner by synthesizing short fragments called Okazaki fragments which are later joined by DNA ligase.
Hence, statement C is incorrect. So, the correct answer is 'DNA replication begins at the promoter'.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free