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Question
What is the correct sequence of the stages in bacteriophage lytic cycle?
(A) Attachment, Penetration, Lysis, Multiplication
(B) Attachment, Penetration, Multiplication, Lysis
(C) Lysis, Penetration, Multiplication, Attachment
(D) Attachment, Lysis, Multiplication, Penetration
Solution
(B) Attachment, Penetration, Multiplication, Lysis
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Very Short Answer Question:
When does DNA replication takes place?
Define Heterochromatin.
At the point of origin, enzyme endonuclease nicks one of the strands of DNA by breaking the ______
Identify the CORRECT combination of statements with respect to DNA synthesis.
I. Always the direction of DNA polymerization 5' → 3' when referring to the polarity of strand being synthesized.
II. DNA ligase forms hydrogen bonds between two newly synthesized DNA strands.
III. DNA polymerases on their own cannot initiate the process of replication.
IV. DNA polymerase can catalyse polymerization in both 5'→ 3' and 3'→ 5' direction.
Which of the following is the function of single-strand binding proteins?
Match the following column.
| Column - I | Column - II |
| (A) DNA structure | 1. Muller and stadder |
| (B) Semiconservative replication of DNA | 2. Beadle and partum |
| (C) One gene-one enzyme theory | 3. Watson and crick |
| (D) Induction of mutation | 4. Massillon and stahl |
During replication of DNA Okazaki fragments are formed in the direction:
The nucleic acid synthesis takes place in ______.
Select the incorrect statement regarding DNA replication.
Torsional stress created during DNA replication is relieved by ______.
