Which of the following constitute about 10-20% of total circular RNA?
m-RNA
r -RNA
t-RNA
hn -RNA
C.
t-RNA
Transfer RNA (t-RNA) constitute about 10-20% of total cellular RNA. Since t-RNA are difficult to be separated by ultra- centrifugation, they are also called as soluble RNA (s-RNA).
The process of multiplication of DNA from DNA is known as
replication
transversion
transcription
translation
The number of hydrogen bonds between adenine and thymine in a DNA molecule is :
two
three
four
eight
Mutation is more common when it is present in:
dominant condition
recessive condition
constant in population
none of the above
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
Introns
Exons
Both 'a' and 'b'
None of the above
