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TLS Online TPP Program

#Question id: 4910

For a trait known to be caused by a mitochondrial gene variant, there may be an occasional female that can transmit different phenotypes to her progeny on an apparently random basis. What situation might you suspect?

#Unit 8. Inheritance Biology

  1. She is heterozygous for this trait.

  2. She displays heteroplasmy for this trait.

  3. She displays a low rate of mutation.

  4. She is the product of a somatic mutation

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TLS Online TPP Program

#Question id: 3526

#Unit 8. Inheritance Biology

In garden peas, the allele for tall plants (D) is completely dominant to the allele for dwarf plants (d) and the allele for violet flower color (W) is completely dominant to the allele for white flower color (w). In a cross between a tall violet plant, with the genotype DDWw, and a dwarf white plant, what phenotypic ratio of the progeny would be expected from this cross?
TLS Online TPP Program

#Question id: 10239

#Unit 10. Ecological Principles

Two species of barnacle, balanus balanoides and Chthamalus stellatus, occur in the intertidal regions of Scotland. As following

 Which of the following statements is correct?
TLS Online TPP Program

#Question id: 16098

#Unit 7. System Physiology – Animal

Which one of the following is produced by sebaceous glands?
TLS Online TPP Program

#Question id: 1029

#Unit 4. Cell Communication and Cell Signaling

The structures used for motility in both eukaryotes and prokaryotes are
TLS Online TPP Program

#Question id: 23426

#General Aptitude

If A + B means A is the mother of B; A −B means A is the brother B; A%B means A is the father of B and A × means A is the sister of B, which of the following shows that P is the maternal uncle of Q?