set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

From heredity point of view which marriage is not suitable

a) Both Rh (–)

b) Man Rh (–) and Woman Rh (+)

c) Both Rh (+)

d) Man Rh (+) and Woman Rh (–)

Question : 2

At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us?

1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop diseaseresistant animal breeds.

a) 1 and 3

b) 1 and 2

c) Only 2

d) 1, 2 and 3

Question : 3

Generally, Orobanche weed is found in

a) Rice field

b) Tobacco field

c) Gram field

d) Wheat field

Question : 4

Which one of the following is the bioethically non-controversial source of stem cells as an alternative to the highly controversial embryonic stem cells?

a) Blood of foetus

b) Bone marrow - derived stem cells

c) Amniotic fluid derived stem cells

d) Blood of babies

Question : 5

Nobel Prize winning scientist James D. Watson is known for his work in which area?

a) Environmental protection

b) Metallurgy

c) Meteorology

d) Genetics

Question : 6

Hereditary characteristics are passed on from parents to offspring chiefly through

a) genes

b) gametes

c) enzymes

d) centrosomes