set 3 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on genetic engineering and bio technology topic of general science mcq
In human beings, the female play a major role in determining the sex of the offspring.
Reason (R) :
Women have two X-chromosomes.
(a) A is true, but R is false
(b) Both A and R are true and R is the correct explanation of A
(c) Both A and R are true, but R is not a correct explanation of A
(d) A is false, but R is true
The correct answers to the above question in:
Answer: (d)
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Read more bio technology gk Based General Science Questions and Answers
Question : 1
James D. Watson and Francis Crick are associated with the discovery of
a) Anti-malarial drugs
b) Vaccine
c) Structure of DNA
d) Penicillin
Answer »Answer: (c)
Question : 2
Which of the following is known as specific molecular scissors?
a) Restriction endonuclease
b) Ligase
c) Helicase
d) DNA polymerase
Answer »Answer: (a )
Question : 3
Who has proposed for the first time the double helix model of DNA?
a) Lamark and Darwin
b) Watson and Crick
c) Fisher and Haldoni
d) Hugo de Vries
Answer »Answer: (b)
Question : 4
Generally, Orobanche weed is found in
a) Rice field
b) Tobacco field
c) Gram field
d) Wheat field
Answer »Answer: (b)
Question : 5
At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us?
- It is possible to know the pedigree of livestock.
- It is possible to understand the causes of all human diseases.
- It is possible to develop diseaseresistant animal breeds.
a) 1 and 3
b) 1 and 2
c) Only 2
d) 1, 2 and 3
Answer »Answer: (a)
Question : 6
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 (–)
Answer »Answer: (d)
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