Molecular Basis of Inheritance · Question 36

NEET (UG) 2022MCQEasy📈 Topic in 38% papers+4−1

If a geneticist uses the blind approach for sequencing the whole genome of an organism, followed by assignment of function to different segments, the methodology adopted by him is called as :

Sequence annotation
Gene mapping
Expressed sequence tags
Bioinformatics

Answer

(1) Sequence annotation

Solution

As per NCERT, the Human Genome Project followed two major approaches.

(i) Expressed Sequence Tags (ESTs): identifying all the genes that are expressed as RNA.

(ii) The blind approach: sequencing the whole set of the genome, containing all the coding and non-coding sequences, and later assigning different regions in the sequence with functions.

∴ Assigning functions to the different segments of a blindly sequenced genome is called Sequence Annotation.

Answer: (1)

NEET (UG) 2022

Keep practising — Molecular Basis of Inheritance

If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?

3.3 109 bp
6.6 109 bp
3.3 106 bp
6.6 106 bp

NEET (UG) 2022

In an E. coli strain i gene gets mutated and its product cannot bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?

Only z gene will get transcribed
z, y, a genes will be transcribed
z, y, a genes will not be translated
RNA polymerase will bind the promoter region

NEET (UG) 2022

Ten E. coli cells with 15N-dsDNA are incubated in medium containing 14N nucleotide. After 60 minutes, how many E. coli cells will have DNA totally free from 15N?

20 cells
40 cells
60 cells
80 cells

NEET (UG) 2022

In lac operon, z gene codes for

Transacetylase
β-galactosidase
Permease
Repressor

NEET (UG) 2022 (Phase 2)

Given below are two statements In the light of the above statements, choose the correct answer from the options given below:

Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect

NEET (UG) 2022 (Phase 2)

Match List - I with List - II. Choose the correct answer from the options given below

(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
(a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
(a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)

NEET (UG) 2022 (Phase 2)

Match List-I with List-II: Choose the correct answer from the options given below:

(a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

NEET (UG) 2022 (Phase 2)

If DNA contained sulfur instead of phosphorus and proteins contained phosphorus instead of sulfur, what would have been the outcome of Hershey and Chase experiment?