GATE2020: 35

Determine the correctness or otherwise of the following Assertion [$a$] and the Reason [$r$].

Assertion [$a$]: Dam methylase protects $E$. coli $DNA$ from phage endonucleases

Reason [$r$]: $E$. coli Dam methylase methylates the adenosine residue in the sequence "$GATC$"

1. Both [$a$] and [$r$] are true and [$r$] is the correct reason for [$a$]
2. Both [$a$] and [$r$] are true but [$r$] is not the correct reason for [$a$]
3. Both [$a$] and [$r$] are false
4. [$a$] is false but [$r$] is true
in Others
edited