MCQ
The compound $'A'$ is a complementary base of in $DNA$ stands.
  • Adenine
  • B
    Cytosine
  • C
    Guanine
  • D
    Uracil

Answer

Correct option: A.
Adenine
a
Given structure is Thymine and Thymine being paired with adenine.

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Similar questions

Consider the following standard electrode potentials ($E^o$ in volts) in aqueous solution

Element $M^{3+}/ M$ $M^+/M$
$Al$ $-1.66$ $+0.55$
$Tl$ $+1.26$ $-0.34$

Based on these data, which of the following statements is correct ?

Identify the product $Z$ in the series 

 $C{H_3}CN\xrightarrow{{Na + {C_2}{H_5}OH}}X\xrightarrow{{HN{O_2}}}Y\mathop {\xrightarrow{{{K_2}C{r_2}{O_7}}}}\limits_{{H_2}S{O_4}} Z$

Relationship between products $(Q)$ and $(S)$ is

$\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}_{2}$ $\xrightarrow[{{\text{H}}_{2}}{{\text{O}}_{2}},\bar{O}\text{H}]{\text{B}{{\text{H}}_{3}},\text{THF}}(P)$ $\xrightarrow[\text{C}{{\text{H}}_{2}}\text{C}{{\text{l}}_{2}}]{\text{ Pyridinium Chloro Chromate }(\text{PCC})}$ $(Q)$

$\mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}_{2}$ $\xrightarrow[NaB{{H}_{4}}\,,\,H{{O}^{\Theta }}]{Hg\,{{(OAc)}_{2}}\,,\,{{H}_{2}}O}(R)$ $\xrightarrow[\text{C}{{\text{H}}_{2}}\text{C}{{\text{l}}_{2}}]{\text{ Pyridinium Chloro Chromate }(\text{PCC})}$ $(S)$


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