Practice Questions

TLS Online TPP Program

#Question id: 5841

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

#XL - T Zoology

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: 19766

#XL - P Chemistry

Which of the following molecule possesses linear structure ?

TLS Online TPP Program

#Question id: 19767

#XL - P Chemistry

What is wrong about anode rays?

TLS Online TPP Program

#Question id: 19768

#XL - P Chemistry

When atoms of the gold sheet are bombarded by a beam of á -particles, only a few á-particles get deflected whereas most of them go straight undeflected. This is because

TLS Online TPP Program

#Question id: 19769

#XL - P Chemistry

Which of the following is not a characteristic of Planck’s quantum theory of radiations?

TLS Online TPP Program

#Question id: 19770

#XL - P Chemistry

Which of the following statements is wrong? The probability of finding the electron in px orbital is

TLS Online TPP Program

#Question id: 19771

#XL - P Chemistry

In uni electron system, the wave number of any spectral line is directly proportional to