Question

QUESTION 33

Which of the following types of cancer is associated with a defect in nucleotide-excision repair?

A. cervical cancer

B. retinoblastoma

C. Bloom syndrome

D. xeroderma pigmentosum

E. chronic myelogenous leukemia

QUESTION 38

1. What is the term given to a group of individuals belonging to the same species that live in a defined geographic area that actually or potentially interbreed?

   		population
   		genetics
   		consanguinity
   		hybrid vigor
   		cytogenetics

Answer 1

In the nucleotide-excision repair is required for the DNA when there is a damage in the DNA due to the UV light.

From Q 33 we can say that Xeroderma pigmentosum (XP) is a genetic disorder. In this case, the cells will lose the ability to repair their damaged DNA which is caused by ultraviolet (UV) light.

From Q 38 This is talking about the definition of species. They can potentially interbreed, and they live in a defined geographic area. In this area population is the right answer. Because species are the unit of population.

If we look at the other 4 options, like cytogenetics which does not require to consider an area. Genetics as well have the same understanding does nor confine in an area. Hybrid vigor talks about the crossbreeding to make a superior species. Consanguinity is the fact of being descended from the same ancestor.