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DNA Sequencing, Mutation and Repair - Medical Science

Q1:

When mutations involve vital functions so that the mutants are nonviable, it is a

A nonsense mutation

B lethal mutation

C transversion

D none of these

ANS:C - transversion

Vital activity helps organism survive in corresponding condition.

Many enzymes should be synthesized in obligatory (compulsory) manner as they play an imp role in metabolism of either eukaryote or prokaryote. If there is a mutation in the gene of the enzymes, transporter gene, ion channels etc may lead to the death of the object and any mutation leading to the death of the object is termed as LETAL MUTAION.