THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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rRNA
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mRNA
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tRNA
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DNA
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Detailed explanation-1: -Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
Detailed explanation-2: -DNA replication occurs during the S-stage of interphase. DNA replication (DNA amplification) can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to start DNA synthesis at known sequences in a template DNA molecule.
Detailed explanation-3: -As a consequence, it is telomeres that are shortened with each round of DNA replication instead of genes. For example, in humans, a six base-pair sequence, TTAGGG, is repeated 100 to 1000 times. The discovery of the enzyme telomerase (Figure 9.2. 4) helped in the understanding of how chromosome ends are maintained.
Detailed explanation-4: -RNAs, just like DNA, are in principle able to create negative blueprints of themselves through spontaneous base-pairing. In contrast to double-stranded DNA, RNA can also adapt different spatial shapes so that it can also function as an enzyme that catalyses its own replication.
Detailed explanation-5: -Abstract. DNA molecules provide what is probably the most iconic example of self-replication–the ability of a system to replicate, or make copies of, itself.