PG entrance exam CUET PG 2025 Mock Test Life Sciences Fundamental Processes DNA replication, repair and recombination
In E. coli rec A gene is involved in recombination as well as repair and dna b gene is involved in unwinding of DNA double strands during replication. Which of the following statements is correct about rec A and dna b genes
A. mutation in E.coli rec A gene is lethal.
B. E.coli with mutated dna b gene does not survive.
C. dna B after uncoiling DNA double stands prevents further the annealing of the separated strands
D. rec A gene is involved in SOS response and helps DNA repair
The correct combinations are:
1
A and B
2
B and D
3
C and D
4
A and D