TLS Online TPP Program

#Question id: 1401


Which of the following are proto-oncogenes?

a. fos               b. myc             c. p53              d. ras               e. Rb

#Unit 4. Cell Communication and Cell Signaling
  1. b and e     

  2. c and e

  3. a, b, and d 

  4. c and b

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TLS Online TPP Program

#Question id: 5728

#Unit 8. Inheritance Biology

A phenotypically normal man carries a translocated chromosome that contains the entire long arm of chromosome 14, part of the short arm of chromosome 14, and most of the long arm of chromosome 21. The man also carries a normal chromosome 14 and a normal chromosome 21. If he marries a cytologically (and phenotypically) normal woman, there is many chance that the couple will produce phenotypically abnormal children? Which of the following is correct combination?

TLS Online TPP Program

#Question id: 5633

#Unit 5. Developmental Biology

During slow block to polyspermy, the components of the cortical granules bind to the _______ to form a fertilization envelope.

TLS Online TPP Program

#Question id: 4644

#Unit 11. Evolution and Behavior

The treeʹs horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Letʹs say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.

According to this tree, what percent of the species seem to be extant (i.e., not extinct)?

TLS Online TPP Program

#Question id: 10839

#Unit 10. Ecological Principles

Which of the following statements about plants and herbivores is true?

TLS Online TPP Program

#Question id: 914

#Unit 1. Molecules and their Interaction Relevant to Biology

Lipoprotein lipase acts in: