51
Assertion (A): In human being, the females play a major role in determining the sex of the offspring.Reason (R): Women have two 'X' chromosomes.
A)
Both (A) and (R) are true and (R) is the correct explanation of (A)
B)
Both (A) and (R) are true, but (R) is not the correct explanation of (A)
C)
(A) is true, but (R) is false
D)
(A) is false, but (R) is true
Answer & Solution
Answer: Option
D
52
What is Cas9 protein that is often mentioned in news?
A)
A molecular scissors used in targeted gene editing
B)
A biosensor used in the accurate detection of pathogens in patients
C)
A gene that makes plants pest resistant
D)
A herbicidal substance synthesized in genetically modified crops
Answer & Solution
Answer: Option
A
53
The cloned sheep 'Dolly' was created through which of the following technique given below.
A)
Gene transfer
B)
Nuclear transfer
C)
Somatic cell transfer
D)
Germinal cell transfer
Answer & Solution
Answer: Option
B
54
The Basis of DNA fingerprinting is
A)
The double helix
B)
Errors in base sequence
C)
DNA replication
D)
DNA polymorphism
Answer & Solution
Answer: Option
D
55
In the context of the developments in Bioinformatics, the term 'transcriptome', sometimes seen in the news, refers to
A)
A range of enzymes used in genome editing
B)
The full range of mRNA molecules expressed by an organism
C)
The description of the mechanism of gene expression
D)
A mechanism of genetic mutations taking place in cells
Answer & Solution
Answer: Option
B
56
Which one of the following is not achieved by transgenic?
A)
Production of biodegradable plastic
B)
Production of edible vaccines
C)
Production of cloned animals
D)
Production of transgenic crops
Answer & Solution
Answer: Option
C
57
James D. Watson and Francis Crick are associated with the discovery of
A)
Vaccine
B)
Structure of DNA
C)
Anti-malarial drugs
D)
Penicillin
Answer & Solution
Answer: Option
B
58
Which of the facts about Dolly (sheep), the first mammal cloned from an adult somatic cell is not correct?
A)
Dolly died in the year 2003
B)
Dolly died due to lung disease
C)
Dolly was born in the year 1998
D)
Dolly was born in Scotland
Answer & Solution
Answer: Option
C
59
World level program 'Human Genome Project' is related with
A)
Establishment of Superman society
B)
Identification of colour distinct breeds
C)
Genetic improvements of human breeds
D)
Identification and mapping of human genes and its sequence
Answer & Solution
Answer: Option
D
60
In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
A)
Only 1
B)
Only 2 and 3
C)
Only 1 and 3
D)
1, 2 and 3
Answer & Solution
Answer: Option
D
