Practice Questions

TLS Online TPP Program

#Question id: 1440

Which of the following is NOT evidence that smoking causes lung cancer?

#Section 3: Genetics, Cellular and Molecular Biology

Epidemiological rates of lung cancer dramatically increased after more people started to smoke.
Exposure of lung cells to the active carcinogen found in cigarettes causes mutations in p53.
Mutations in p53 are found in the same codons in patients with lung cancer who smoke as in cultured cells treated with benzo(a)pyrene.
Epidemiological rates of lung cancer in women increased years after the rates in men increased.

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TLS Online TPP Program

#Question id: 28100

#Section 5: Bioprocess Engineering and Process Biotechnology

Low entropy change of a chemical reaction indicates

TLS Online TPP Program

#Question id: 1676

#Section 2: General Biology

NK cells lack receptors with:

TLS Online TPP Program

#Question id: 15402

#Section 1: Engineering Mathematics

The solution to x²y" + xy' - y = 0 is

TLS Online TPP Program

#Question id: 18220

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which of the following are the subtype of RNA structure

TLS Online TPP Program

#Question id: 181

#Section 2: General Biology

Titration of valine by a strong base, for example NaOH, reveals two pK’s. The titration reaction occurring at pK2 (pK2 = 9.62) is: