Practice Questions

TLS Online TPP Program

#Question id: 5841

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

#Unit 8. Inheritance Biology

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: 21382

#Unit 12. Applied Biology

Low auxin concenteration induce____I______ formation, while high auxin concentration _______II______formation.

TLS Online TPP Program

#Question id: 21383

#Unit 12. Applied Biology

Auxin promote ___________ of DNA , which helps gaining totipotency for the callus formation.

TLS Online TPP Program

#Question id: 21384

#Unit 12. Applied Biology

Which of the following vitamins inhibits the callus formation and improve shoot growth?

TLS Online TPP Program

#Question id: 21385

#Unit 12. Applied Biology

Which of the following inorganic compound function similar as cytokinin, promotes the bud formation by counteracting the inhibitory effect of auxin?

TLS Online TPP Program

#Question id: 21386

#Unit 12. Applied Biology

Which of the following hormones usually inhibits adventitious root as well as shoot formation and induce internode elongation as well as growth of meristem or bud?

TLS Online TPP Program

#Question id: 21387

#Unit 12. Applied Biology

Meristem culture are used for production of__