In a healthy eukaryotic cell, the rate of DNA repair is typically equal to the rate of DNA mutation. When the rate of repair lags behind the rate of mutation, what is a possible fate of the cell?

TLS Online TPP Program

#Question id: 33517

#Unit 2. Cellular Organization

If an average length of E. coli peptide is 300 amino acid. How many genes are approximately there in E. coli genome?

TLS Online TPP Program

#Question id: 33518

#Unit 2. Cellular Organization

A. A powerful way to validate gene structure is to compare sequences in closely related species.

B. If a gene is functional, it is likely to be conserved.

C. The fruit fly genome is larger than the nematode worm genome

D. Eukaryotic polypeptide sizes are greater than those of prokaryotes.

Find true and false statements

TLS Online TPP Program

#Question id: 33519

#Unit 2. Cellular Organization

Assertion: Some genes are present in more than one copy or are related to one another. 

Reason: Number of different types of genes is less than the total number of genes.

TLS Online TPP Program

#Question id: 33520

#Unit 2. Cellular Organization

What can be correctly inferred from the figure shown here.

A. Many genes are duplicated

B. Number of different gene families is larger than the total number of genes

C. A gene family arises by repeated duplication of an ancestral gene followed by accumulation of changes in sequence among the copies

TLS Online TPP Program

#Question id: 33521

#Unit 2. Cellular Organization

Operationally, we usually consider that two genes are orthologs if 

TLS Online TPP Program

#Question id: 33522

#Unit 2. Cellular Organization

Alignment of two entire genome sequences and comparison of the locations of orthologs is done by

A. BLAST

B. MUMmer

C. InterPreTS

D. ProtoNet