MHT CET · BIOLOGY · STD 12 - 4. Molecular Basis of Inheritance

In DNA fingerprinting technique, the radioactive intermediates formed during hybridization are __________ molecules.

A Double-stranded DNA
B Single-stranded DNA
C Single-stranded mRNA
D Double-stranded rRNA

Verified Solution

Answer & Solution

Correct Answer

(A) Double-stranded DNA

Step-by-step Solution

Detailed explanation

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match column I with column II and select the correct answer form the option given below.

	Column-I		Column-II
i.	Cistron	a.	addition of methylated GTP to 5'-end of hn RNA.
ii.	Exon	b.	non-coding sequences which are removed by splicing.
iii.	Intron	c.	Segment of DNA coding for a poly peptide
iv.	Capping	d.	Coding sequences which appear in processed mRNA.

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	Column I		Column II
a.	Transferase	i.	aldolase
b.	Hydrolase	ii.	alcohol dehydrogenase
c.	Lyase	iii.	sucrase
d.	Oxidoreductase	iv.	glucokinase

Column I		Column II
(a)	Tryptophan	(i)	Cytokinin
(b)	Mevalonic acid	(ii)	Abscisic acid
(c)	Kinetin	(iii)	Gibberellins
(d)	Dormin	(iv)	Auxin