GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A-DNA
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B-DNA
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C-DNA
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Z-DNA
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Detailed explanation-1: -cDNA is a DNA copy synthesized from mRNA. The enzyme used is reverse transcriptase an RNA-dependent DNA polymerase.
Detailed explanation-2: -A reverse transcriptase (RT) is an enzyme used to generate complementary DNA (cDNA) from an RNA template, a process termed reverse transcription.
Detailed explanation-3: -Complementary DNA (cDNA) is synthesized in a reverse transcription reaction by the enzyme reverse transcriptase from a single-stranded mRNA template.
Detailed explanation-4: -In modern metabolism, protein-based enzymes called reverse transcriptases can copy RNA to produce molecules of complementary DNA. Other enzymes can promote the production of DNA nucleotides (the building blocks of DNA molecules) from RNA nucleotides via challenging chemical reactions.
Detailed explanation-5: -Each mRNA carries instructions to make a specific protein. These instructions are like a “blueprint.” mRNA delivers these instructions, and cells put the protein together.