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TLS Online TPP Program

#Question id: 5841

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

#Unit 8. Inheritance Biology

  1. The BRCA proteins damage DNA by generating double-stranded breaks which can lead to cancer.

  2. Cells become more susceptible to damage if the genes for these proteins are damaged.

  3. BRCA proteins inhibit excision repair mechanisms.

  4. BRCA proteins initiate recombination between non-homologous DNA sequences.

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TLS Online TPP Program

#Question id: 10596

#Unit 10. Ecological Principles

In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?
TLS Online TPP Program

#Question id: 5256

#Unit 8. Inheritance Biology

If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?
TLS Online TPP Program

#Question id: 18869

#Unit 13. Methods in Biology

The pace at which light passes through objects in phase contrast microscopy is-
TLS Online TPP Program

#Question id: 1016

#Unit 4. Cell Communication and Cell Signaling

Lyme disease is an example of a disease
TLS Online TPP Program

#Question id: 24113

#General Aptitude

Charles, aware of his susceptibility to gum disease, is diligent about flossing.