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?

Describe the structural features of nucleic acids.

What are polynucleotides?

Why DNA is a polynucleotide.

Define polynucleotide.

Nucleic acids are the polymers of Nucleotides.

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.

The above figure depicts:

Nucleotides are joined together by phosphodiester linkage.

Nucleotides are joined together by phosphodiester linkage between _____ carbon atoms of the pentose sugar.