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RecA hands off the 3' protruding end to RecBCD for strand invasion.

a. True
b. False

User Skv
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1 Answer

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Final answer:

The statement is false because RecA facilitates strand invasion by binding to the single-stranded DNA and does not hand off the 3' end to RecBCD for this process.

Step-by-step explanation:

The statement "RecA hands off the 3' protruding end to RecBCD for strand invasion" is false. In the process described in the question, RecA proteins actually facilitate the strand invasion by binding to the single-stranded DNA to form a nucleoprotein filament. The 3' end of this filament is what invades the homologous DNA strand during homologous recombination to begin the repair process. RecBCD, on the other hand, has a role earlier in the process where it helps in processing DNA ends to generate a 3' overhang that RecA can bind to, not after RecA has facilitated strand invasion. The process involves additional proteins that enable strand invasion, with new leading strand replication on an unbroken homolog template.

User Praveen S
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