Practice Questions

TLS Online TPP Program

#Question id: 3865

Which of the following statements about E. coli RNA polymerase is false?

#Section 3: Genetics, Cellular and Molecular Biology

Core enzyme selectively binds promoter regions, but cannot initiate synthesis without a sigma factor.
RNA polymerase holoenzyme has several subunits.
RNA produced by this enzyme will be completely complementary to the DNA template.
The enzyme adds nucleotides to the 3' end of the growing RNA chain.

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TLS Online TPP Program

#Question id: 1840

#Section 2: General Biology

What does the term variolation refer to?

TLS Online TPP Program

#Question id: 1841

#Section 2: General Biology

The circulation of a 2-month-old breast-fed baby will contain maternal:

TLS Online TPP Program

#Question id: 1843

#Section 2: General Biology

For vaccination against mycobacterial diseases such as tuberculosis, what is the most important facet of the immune response to be stimulated?

TLS Online TPP Program

#Question id: 1844

#Section 2: General Biology

Which of the following diseases has been completely eradicated worldwide?

TLS Online TPP Program

#Question id: 1845

#Section 2: General Biology

BCG is used to protect against:

TLS Online TPP Program

#Question id: 1846

#Section 2: General Biology

A small protein subunit used in a vaccine can fail to stimulate T-cell immunity because of: