Differentiate between DNA and RNA. - Vidyadip

Question

Differentiate between DNA and RNA.

✓

Answer

Differences between DNA and RNA

DNA	RNA
1. DNA is deoxyribonucleic acid.	1. RNA is ribonucleic acid.
2. DNA occurs in the nucleus of the cell in chromosomes.	2. RNA occurs mainly in the cytoplasm of the cell.
3. DNA has double-stranded helix and both the helical strands are coiled in opposite directions.	3. Generally, RNA is formed of a single strand. Double-stranded RNA is also found but they are non-helical. RNA molecule may be coiled on itself.
4. DNA nucleotides consist of deoxyribose sugar.	4. RNA nucleotides consists of ribose sugar.
5. The nitrogenous bases found in DNA are: Purine bases Adenine and Guanine. Pyrimidine bases: Cytosine and Thymine.	5. The nitrogenous bases found in RNA are: Purine bases: Adenine and Guanine. Pyrimidine bases: Cytosine and Uracil.
6. DNA is the genetic material.	6. RNA when present with DNA is not the genetic material.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from Biomolecules→Biomolecules — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

State two main differences between globular proteins and fibrous proteins.
Based on their chemical composition, state how are lipids classified Give one example of each class.

Explain oxidation and reduction reactions of carbonyl compounds.

What happens to most probable kinetic energy and the energy of activation with increase in temperature?

Write equations of the following reactions :
(i) Friedel Crafts reaction-alkylation of anisole.
(ii) Nitration of anisole.
(iii) Bromination of anisole in ethanoic acid medium.
(iv) Friedel Crafts acetylation of anisole.

Answer the following questions briefly:

What are reducing sugars?
What is meant by denaturation of a protein?
How is oxygen replenished in our atmosphere?

Define enzymes.

Indicate the types of isomerism exhibited by the following complexes and draw the structures for these isomers:
i. $\ce{k \left[ Cr \left( H _2 O \right)_2\left( C _2 O _4\right)_2\right]}$
ii. $\ce{\left[ Co ( en )_3\right] Cl _3}$
iii. $\ce{\left[ Co \left( NH _3\right)_5\left( NO _2\right)\left( NO _3\right)_2\right]}$
iv. $\ce{ \left [ Pt ( NH _3) ( H _2 O ) Cl _2\right].}$

Match the compounds given in Column $I$ with the oxidation state of cobalt present in it $($given in Column $II)$ and assign the correct code.

	Column $I ($Compound$)$		Column $II ($Oxidation state of $Co)$
$a.$	$\ce{[Co(NCS)(NH_3)_5](SO_3)}$	$1.$	$+4$
$b.$	$\ce{[Co(NH_3)_4Cl_2]SO_4}$	$2.$	$0$
$c.$	$\ce{Na_4[Co(S_2O_3)_3]}$	$3.$	$+1$
$d.$	$\ce{[Co_2(CO)_8]}$	$4.$	$+2$
		$5.$	$+3$

Complete the following chemical equations for reactions:

i. $\text{MnO}_{4(aq)}^{-}+\text{S}_{2}\text{O}_{3(aq)}^{2-}+\text{H}_{2}\text{O}_{(l)}\rightarrow$
ii. $\text{Cr}_{2}\text{O}^{-}_{7(aq)}+\text{H}_{2}\text{S}_{(g)}+\text{H}^{+}_{(aq)}\rightarrow$

Give an explanation for each of the following, observations:

The gradual decrease in size $($actinoid contraction$)$ from element to element is greater among the .actinoids than that among the lanthanoids $($lanthanoid contraction$).$
The greatest number of oxidation states are exhibited by the members in the middle of a transition series.
With the same d-orbital configuration $(d^4) Cr^{2+}$ ion is a reducing agent but $Mn^{3+}$ ion is an oxidising agent.

Describe the general trends in the following properties of the first series of the transition elements:

Stability of +2 oxidation state.
Formation of oxometal ions.

Assign reason for each of the following:

Transition elements exhibit variable oxidation states.
Transition metal ions are usually coloured.

Explain the following phenomena with the help of Henry’s law.

Painful condition known as bends.
Feeling of weakness and discomfort in breathing at high altitude.