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TLS Online TPP Program

#Question id: 3801

Why should patients with xeroderma pigmentosum avoid sunlight?

#Unit 3. Fundamental Processes

  1. The UV wavelengths do irreparable damage to DNA.

  2. Sunlight inhibits any residual DNA repair activity in the cell.

  3. These patients lack pigmentation to protect them from burning.

  4. Sunlight inhibits DNA polymerases.

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TLS Online TPP Program

#Question id: 427

#Unit 1. Molecules and their Interaction Relevant to Biology

The degradation of which class of biochemicals does not significantly contribute to the release of energy to cells?
TLS Online TPP Program

#Question id: 3876

#Unit 3. Fundamental Processes

Which one of the following is not true of the mRNA for ovalbumin?
TLS Online TPP Program

#Question id: 26587

#Unit 3. Fundamental Processes

Circularisation of telomere known as
TLS Online TPP Program

#Question id: 12112

#Unit 10. Ecological Principles

The presence of altruistic behaviour is most likely due to kin selection, a theory maintaining that
TLS Online TPP Program

#Question id: 4732

#Unit 8. Inheritance Biology

What is F2 phenotype ratio observed when a homozygous recessive mutation in either or both of two different genes results in the same mutant phenotype?