TLS Online TPP Program

#Question id: 4990


Fly species W, found in a certain part of the island, produces fertile offspring with species Y. Species W does not produce fertile offspring with species X or Z. If no other species can hybridize, then species W and Y

#Unit 11. Evolution and Behavior
  1. have genomes that are still similar enough for successful meiosis to occur in hybrid flies.

  2. have more genetic similarity with each other than either did with the other two species.

  3. may fuse into a single species if their hybrids remain fertile over the course of many generations.

  4. A, B, and C

More Questions
TLS Online TPP Program

#Question id: 11934

#Unit 7. System Physiology – Animal

Which of the following represents the basis for transduction of a sensory stimulus into nerve impulses?

TLS Online TPP Program

#Question id: 5357

#Unit 8. Inheritance Biology

This pedigree shows the inheritance of a recessive trait in humans. Individuals that have the trait are homozygous for a recessive allele a. If H and I, who happen to be first cousins, marry and have a child, what is the chance that this child will have the recessive trait?

TLS Online TPP Program

#Question id: 885

#Unit 1. Molecules and their Interaction Relevant to Biology

The half-lives of many cytoplasmic proteins vary with the identities of their N-terminal residues via the  N-end rule.

a) Proteins with the “destabilizing” N-terminal residues contain Asp, Arg, Leu, Lys, and Phe with their half-lives > 2 to 3 hours

b) Proteins with the “destabilizing” N-terminal residues with their half-lives of only 2 to 3 minutes contain; Asp, Arg, Leu, Lys, and Phe

c) Proteins contain Ala, Gly, Met, Ser, Thr, and Val have half-lives of >10 hours are stabilizing N-terminal residue in prokaryotes

d) Those with the “stabilizing” N-terminal residues Ala, Gly, Met, Ser, Thr, and Val have half-lives of >20 hours in eukaryotes

Which of the following is correct?

TLS Online TPP Program

#Question id: 11939

#Unit 7. System Physiology – Animal

Which of the following would cause the greatest degree of hyperkalemia?

TLS Online TPP Program

#Question id: 2943

#Unit 2. Cellular Organization

Which of the following is NOT a mechanism by which G1/S cyclin-CDKs ensure progression through the cell cycle?