Practice Questions

TLS Online TPP Program

#Question id: 5841

How are the BRCA proteins and their genes implicated in breast cancer?

#Genetics

The BRCA proteins damage DNA by generating double-stranded breaks which can lead to cancer.
Cells become more susceptible to damage if the genes for these proteins are damaged.
BRCA proteins inhibit excision repair mechanisms.
BRCA proteins initiate recombination between non-homologous DNA sequences.

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TLS Online TPP Program

#Question id: 3006

#Microbiology

A bacterial population increases from 10³ cells to 10⁹ cells in 10 h. Calculate the number of generation time in minute.

TLS Online TPP Program

#Question id: 3007

#Microbiology

Bacterial endospores function in

TLS Online TPP Program

#Question id: 14966

#Microbiology

The bacterial cell wall is composed of a macromolecular network called peplidoglycan (also known as murein) which is present either alone or in combination with other substances

TLS Online TPP Program

#Question id: 14964

#Microbiology

The resistance of the tubercle bacillus to various factors is probably due to its

TLS Online TPP Program

#Question id: 14963

#Microbiology

Which antibiotics may be completely ineffective in treating a mycoplasmal infection?

TLS Online TPP Program

#Question id: 14833

#Microbiology

The pneumococcal vaccine is directed against the