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TLS Online TPP Program

#Question id: 4319

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

#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: 6948

#5. Developmental Biology

Which of the following genes is expressed at the posterior margin of each parasegment
TLS Online TPP Program

#Question id: 6950

#5. Developmental Biology

In mammalian development, the embryo will form from which population of cells?
TLS Online TPP Program

#Question id: 6951

#5. Developmental Biology

In chick development, the cell movement during gastrulation is called:
TLS Online TPP Program

#Question id: 6952

#5. Developmental Biology

Which technique is commonly used for gene knock-out in mice?
TLS Online TPP Program

#Question id: 6953

#5. Developmental Biology

Maternal factors are:
TLS Online TPP Program

#Question id: 6954

#5. Developmental Biology

Between fertilization and the first cleavage division, actin filaments pull the cytoplasm of the frog egg toward the point of sperm entry in a process called: