Embibe Experts Solutions for Exercise 2: Assignment

Select the correct statement(s) about lac operon.
a. Glucose or galactose act as inducers for the expression of the lac operon.
b. In the presence of lactose, the repressor protein binds with the lactose molecules.
c. It is an example of a repressible operon system.
d. Its regulation by repressor protein is called positive regulation.

The genes in eukaryotes are said to be split as

Select the true statement(s) for AUG.
A. It codes for an amino acid methionine
B. It is an initiation codon
C. It is a non-degenerate codon

Mark the wrong statement. 

In prokaryotic translation, the formation of peptide bond between two amino acids is catalysed by a

The experimental proof for semiconservative mode of DNA replication was first shown in a bacterium, by

Heterochromatin is
(a) Darkly stained region
(b) Loosely packed chromatin
(c) Transcriptionally inactive 

Select true (T) or false (F) for the following statements and choose the correct option.

A. QB bacteriophage has RNA as genetic material.

B. Free $2\text{'}\mathrm{OH}$ of RNA makes it more labile and easily degradable.

C. The experiment of Hershey and Chase gave unequivocal proof that DNA is the genetic material.