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TLS Online TPP Program

#Question id: 4319

Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

#Unit 3. Fundamental Processes

  1. Their normal products participate in repair of DNA damage.

  2. The mutant forms of either one of these prevent breast cancer.

  3. The normal genes make estrogen receptors.

  4. They block penetration of breast cells by chemical carcinogens.

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TLS Online TPP Program

#Question id: 33473

#Unit 2. Cellular Organization

Which of the following specialized DNA sequences and their functions that act to ensure that the number and morphology of chromosomes are constant from one generation of a cell to the next.
 Replication origins B. Centromeres C. Telomeres
TLS Online TPP Program

#Question id: 29537

#Unit 6. System Physiology – Plant

Polygalacturonases (PG) secreted by the fungal hyphae interact with plant cell by
TLS Online TPP Program

#Question id: 20308

#Unit 7. System Physiology – Animal

Main source of estrogen in men & postmenopausal women is: 
TLS Online TPP Program

#Question id: 11327

#Unit 10. Ecological Principles

What do podzolized and laterized soils have in common?
TLS Online TPP Program

#Question id: 3977

#Unit 3. Fundamental Processes

Which one of the following statements about eukaryotic RNA polymerases is correct?