Molecular Basis of Inheritance · Question 39

In lac operon, z gene codes for

1. Transacetylase
2. β-galactosidase
3. Permease
4. Repressor

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

1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect

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

1. (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
2. (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
3. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
4. (a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)

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

1. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
3. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
4. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)

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?

1. Radioactive phosphorus in bacterial cells
2. No radioactive sulfur in bacterial cells
3. Both radioactive sulfur and phosphorus in bacterial cells
4. Radioactive sulfur in bacterial cells

Against the codon 5' UAC 3', what would be the sequence of anticodon on tRNA?

1. 5' GUA 3'
2. 5' AUG 3'
3. 5' ATG 3'
4. 5' GTA 3'

If A and C make 30% and 20% of DNA, respectively, what will be the percentage composition of T and G?

1. T : 20%, G : 20%
2. T : 20%, G : 30%
3. T : 30%, G : 20%
4. T : 30%, G : 30%

Complete the flow chart on central dogma. [figure]

1. (a) - Transduction; (b) - Translation; (c) - Replication; (d) - Protein
2. (a) - Replication; (b) - Transcription; (c) - Transduction; (d) - Protein
3. (a) - Translation; (b) - Replication; (c) - Transcription; (d) - Transduction
4. (a) - Replication; (b) - Transcription; (c) - Translation; (d) - Protein

What is the role of RNA polymerase III in the process of transcription in eukaryotes?

1. Transcribes only snRNAs
2. Transcribes rRNAs (28S, 18S and 5.8S)
3. Transcribes tRNA, 5S rRNA and snRNA
4. Transcribes precursor of mRNA

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as

1. Polymorphic DNA
2. Satellite DNA
3. Repetitive DNA
4. Single nucleotides