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5.Molecular Basis of Inheritance
medium
In some viruses, $RNA$ is present instead of $DNA$ indicating that
A
their nucleic acid must combine with host $DNA$ before replication.
B
they cannot replicate.
C
there is no hereditary information.
D
$RNA$ can act to transfer heredity.
Solution
$RNA$ and $DNA$ both are genetic material and carry genetic information from one generation to other. A virus is a small parasite that cannot reproduce by itself. Most viruses have either $RNA$ or $DNA$ as their genetic material. Once a virus infects a susceptible cell, it can direct the cell machinery to produce more viruses.
Standard 12
Biology
