Home
Class 12
BIOLOGY
RNA primer is removed by...

RNA primer is removed by

A

DNAP -I

B

DNAP-II

C

DNAP -III

D

Primase

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Role of RNA Primer:** - RNA primers are short sequences of RNA that are necessary for DNA replication. They provide a starting point for DNA synthesis because DNA polymerases cannot initiate synthesis on their own. 2. **Enzymes Involved in DNA Replication:** - Primase synthesizes the RNA primer. - DNA polymerases (I, II, and III) are involved in the elongation of the DNA strand by adding nucleotides. 3. **Identifying the Enzyme that Removes RNA Primers:** - During DNA replication, RNA primers need to be removed once the DNA strand is synthesized. This is crucial for the continuity of the DNA strand. - DNA polymerase I is specifically known for its role in removing RNA primers. It has exonuclease activity that allows it to cleave the RNA nucleotides from the RNA-DNA hybrid. 4. **Finalizing the Answer:** - Among the options provided (DNA polymerase I, DNA polymerase II, DNA polymerase III), DNA polymerase I is the enzyme that removes the RNA primer during DNA replication. 5. **Conclusion:** - Therefore, the correct answer to the question "RNA primer is removed by" is **DNA polymerase I**. ---
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -A) Objective Type Questions|35 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION -B) Objective Type Questions|36 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF (Select true of false statement.)|3 Videos

  • MOCK_TEST_20

    AAKASH INSTITUTE ENGLISH|Exercise EXAMPLE|31 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    AAKASH INSTITUTE ENGLISH|Exercise TRY YOURSELF|38 Videos

Similar Questions

Explore conceptually related problems

Select the correct option that correctly fill the blanks i-iv. I . Less than (i)____ of genome represents structural genes that code for proteins. ii. Chemical substance that binds with repressor and convert it into a non-DNA binding state is (ii)_____. III. In prokaryotes, during replication RNA primer is removed by (iii) where as in eukaryotes it is removed by(Iv)______.

RNA primer is required for

Dominance of RNA world is proved by

Assertion: For DNA replication RNA primer is needed. Reason: Synthesis of new DNA chain is initiated by DNA polymerase.

RNA is

Consider the following four statements A, B, C and D and select the right option for two correct statement :- Statements :- (A) RNA was first genetic material (B) 5-methyl uracil found in RNA (C) DNA polymerase-III does not require RNA primer for the synthesis of DNA strand (D) RNA primer formed over 3'end of template strand The correct statements are :-

Gene amplification using primers can be done by :

Enzyme required for removing RNA primer during DNA replication is

Consider the following events in DNA replication 1. Formation of RNA primers by RNA polymerase. 2. Removal of RNA primers and formation of Okazaki fragments. Formation of DNA strands on RNA primers by DNA polyIII complex. 4. Recognition of intiation point by initiator protein. 5. Dissociation of hydrogen bonds and opening of a 'bubbble' in the duplex by unwinding proteins. 6. Filling up of the gaps between Okazaki fragments and formation of DNA strand. The correct sequence of these events is:-

During DNA synthesis, both strands require an RNA primer to start elongation because it is an