MCQ
$RNA$ is different from $DNA$ because $RNA$ contains
- ARibose sugar and thymine
- ✓Ribose sugar and uracil
- CDeoxyribose sugar and thymine
- DDeoxyribose sugar and uracil
✓
Answer
Correct option: B.
Ribose sugar and uracil
b
It’s obvious.
It’s obvious.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The solubility product of $AgCl$ under standard conditions of temperature is given by
→In the reaction, $A + B$ $\rightleftharpoons$ $2C$, at equilibrium, the concentration of $A$ and $B$ is $0.20\,\,mol\,\,{l^{ - 1}}$ each and that of $C$ was found to be $0.60\,\,mol\,\,{l^{ - 1}}$. The equilibrium constant of the reaction is
→$Fe ^{3+}$ cation gives a prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of.
→Which of the species shown below is the most stable form of the intermediate in the electrophilic addition of $Cl_2$ in water to cyclohexene to form a halohydrin ?
→Consider the following reaction. On estimation of bromine in $1.00 g$ of $R$ using Carius method, the amount of $AgBr$ formed (in $g$ ) is. . . .
→$\overline{\text { [Given : }}$ Atomic mass of $H =1, C =12, O =16, P =31, Br =80, Ag =108]$
The emission spectrum of hydrogen is found to satisfy the expression for the energy change. $\Delta E$ (in joules) such that $\Delta E = 2.18 \times 10\left( {\frac{1}{{n_1^2}} - \frac{1}{{n_2^2}}} \right)\,\,J$ where ${n_1}$ $= 1, 2, 3$….. and ${n_2}$ $= 2, 3, 4…….$ The spectral lines correspond to Paschen series to
→The correct statement$(s)$ regarding, $(i)$ $HC1O$, $(ii)$ $HClO _2$, $(iii)$ $HClO _3$ and $(iv)$ $HClO _4$, is (are)
→$(A)$ The number of $Cl = O$ bonds in $(ii)$ and $(iii)$ together is two
$(B)$ The number of lone pairs of electrons on $Cl$ in $(ii)$ and $(iii)$ together is three
$(C)$ The hybridization of $Cl$ in $(iv)$ is $sp ^3$
$(D)$ Amongst $(i)$ to $(iv)$, the strongest acid is $(i)$
For the given compounds the correct order of resonance energy is
Choose the correct statements about the hydrides of group $15$ elements.
→$A$. The stability of the hydrides decreases in the order $\mathrm{NH}_3>\mathrm{PH}_3>\mathrm{AsH}_3>\mathrm{SbH}_3>\mathrm{BiH}_3$
$B$. The reducing ability of the hydrides increases in the order $\mathrm{NH}_3<\mathrm{PH}_3<\mathrm{AsH}_3<\mathrm{SbH}_3<\mathrm{BiH}_3$
$C$. Among the hydrides, $\mathrm{NH}_3$ is strong reducing agent while $\mathrm{BiH}_3$ is mild reducing agent.
$D$. The basicity of the hydrides increases in the order $\mathrm{NH}_3<\mathrm{PH}_3<\mathrm{AsH}_3<\mathrm{SbH}_3<\mathrm{BiH}_3$Choose the most appropriate from the option given below:
Freezing point of a $4\%$ aqueous solution of $X$ is equal to freezing point of $12\%$ aqueous solution of $Y$. If molecular weight of $X$ is $A$ then molecular weight of $Y$ is ............. $\mathrm{A}$
→