Which of the following statements are correct regarding $DNA$?
$(a)$ It is double stranded helically coiled.
$(b)$ The two strands are complementary and anti-parallel.
$(c)$ It has deoxyribose sugar and is acidic in nature.
$(d)$ It has only three nitrogen bases.
$(a)$ It is double stranded helically coiled.
$(b)$ The two strands are complementary and anti-parallel.
$(c)$ It has deoxyribose sugar and is acidic in nature.
$(d)$ It has only three nitrogen bases.
- A$(a)$,$(b)$,$(c)$ and $(d)$
- B$(a)$ and $(d)$ only
- C$(a)$ and $(c)$ only
- D$(a)$,$(b)$ and $(c)$
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Similar Questions
Identify the correct features of $DNA$ from the following statements:
$(i)$ It is made of two polynucleotide chains.
(ii) The backbone is constituted by sugar and phosphate.
(iii) The two chains have anti-parallel polarity.
(iv) The bases in the two strands are linked through $H$-bonds.
$(v)$ Both chains are coiled in a right-handed fashion.
$(i)$ It is made of two polynucleotide chains.
(ii) The backbone is constituted by sugar and phosphate.
(iii) The two chains have anti-parallel polarity.
(iv) The bases in the two strands are linked through $H$-bonds.
$(v)$ Both chains are coiled in a right-handed fashion.
Medium
View SolutionThe arrangement of nucleotides in $DNA$ can be seen by which of the following techniques?
If the distance between two consecutive base pairs is $0.34 \, nm$ and the total number of base pairs of a $DNA$ double helix in a typical mammalian cell is $6.6 \times 10^{9} \, bp$,then the length of the $DNA$ is approximately:
Nucleotides are linked by
Medium
View SolutionSugars are attached to the pyrimidines by the formation of
Easy
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