Practice Questions

TLS Online TPP Program

#Question id: 5841

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

#SCPH06 I Botany

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: 558

#SCPH01 Biochemistry

In a plot of l/V against 1/[S] for an enzyme-catalyzed reaction, the presence of a competitive inhibitor will alter the:

TLS Online TPP Program

#Question id: 8888

#SCPH28 | Zoology

In a small stream, you pick up a rock and observe many small, flattened worms crawling on its undersurface. You decide that they belong to the phylum Platyhelminthes. To which class do they probably belong?

TLS Online TPP Program

#Question id: 5201

#SCPH28 | Zoology

How is a physical map of the genome of an organism achieved?

TLS Online TPP Program

#Question id: 10980

#SCPH06 I Botany

Sympathetic stimulation of the heart

TLS Online TPP Program

#Question id: 4139

#SCPH28 | Zoology

Which one of the following statements about the elongation phase of protein synthesis is true?