Nucleic Acids

Which one of the following base in not present in DNA?

The pyrimidine bases present in DNA are

In both DNA and RNA, heterocylic base and phosphate ester linkages are at

Which of the following is not true about DNA and RNA?

Nucleic acids are the polymers of Nucleotides.

Which of the following bases are present in DNA?

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

The number of primary and secondary hydroxyl groups in ribose are _______ respectively.

In nucleic acid, the sequence is base-phosphate-sugar.

The average energy of each hydrogen bond in $\mathrm{A}-\mathrm{T}$ pair is $\mathrm{x} \mathrm{kcal}$${\mathrm{mol}}^{-1}$ and that in $\mathrm{G}-\mathrm{C}$ pair is $\mathrm{y} {\mathrm{kcalmol}}^{-1}$. Assuming that no other interaction exists between the nucleotides, the approximate energy required in ${\mathrm{kcalmol}}^{-1}$ to split the following double stranded $\mathrm{DNA}$ into two single strands is

[Each dashed line may represent more than one hydrogen bond between the base pairs]

The process of RNA _____ helps in putting together the sequence of exons to form a mature mRNA molecule.

Define heredity. Differentiate between DNA and RNA(any 2 points).

Which of the following molecules transmit characters from parents to offpsrings in heredit?

Define heredity.

What do you mean by the term molecular biology?

Molecular biology is a branch that deals with the study of atoms, molecules of chemical substances.

Define the term molecular biology?

Which one of the following base is not present in $\mathrm{DNA}$?

The branch of biology that deals with the molecular basis of biological activity is known as _____.

The above figure depicts: