NCERT - Molecular Basis of Inheritance Questions and Answers of Class 12 Biology | GkSeries

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
31 Who discovered the process transformation?
1 Colin
2 Maurice
3 Hershey
4 Frederich Griffith

Answer: Frederich Griffith
32 Chargaff’s rule were formulated in
1 1904
2 1944
3 1954
4 1949

Answer: 1949
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
33 Possible number of triplets as genetic code:
1 4
2 16
3 24
4 64

Answer: 64
34 The distance between two adjacent nucleotide base pairs is
1 2 nm
2 3.4 A
3 20 A0
4 3.4nm

Answer: 3.4 A
35 RNA molecules that act as enzymes are called ribozymes.
1 Polymerase
2 Ribozymes
3 Transcriptase
4 Both (1) and (2)

Answer: Ribozymes
36 Degeneracy of genetic code is due to
1 functional 64 codons and 20 amino acids
2 functional 61 codons and 20 amino acids
3 functional 20 codons and 61 amino acids
4 functional 20 codons and 20 amino acids

Answer: functional 61 codons and 20 amino acids
37 According to the lac-operon concept, which functional unit of the bacterial gene material is responsible for suppressing the activity of the operator gene in the absence of lactose?
1 Promoter gene
2 Repressor protein
3 Regulator gene
4 Structural gene

Answer: Regulator gene
38 During translation initiation in prokaryotes, a GTP molecule is needed in
1 association of 30S, mRNA with formyl-met-t RNA
2 association of 50S subunit of ribosome with initiation complex
3 formation of formyl-met-tRNA
4 binding of 30 subunit of ribosome with mRNA

Answer: association of 30S, mRNA with formyl-met-t RNA
39 The Segments of DNA, capable of moving from one location to another are
1 Introns
2 Transposons
3 Exons
4 Operons

Answer: Transposons
40 Which one belongs to DNA?
1 ATUG
2 ACTG
3 AUGT
4 AGUT

Answer: ACTG
41 Individuals affected with alkaptonuria can be detected by the colour of urine. This is because of
1 Oxidation of tyrosine
2 Oxidation of phenyl alanine
3 Oxidation of homogenetisic acid
4 Reduction of homogenetisic acid

Answer: Oxidation of homogenetisic acid
42 In Blender experiment, it we use radioactive sulphur, radio activity is seen in
1 in the pellet
2 in the protein part
3 in the DNA
4 None of these

Answer: in the protein part
43 Semi conservative DNA replication was first demonstrated by
1 Meselson
2 Taylor
3 Avery
4 Stahl

Answer: Taylor
44 Enzymes called ______ add complementary nucleotides, floating inside the nucleus.
1 DNA polymerase
2 DNA synthetase
3 Lipoprotein lipase
4 None of these

Answer: DNA polymerase
45 Whose experiments cracked the DNA and discovered unequivocally that a genetic code is a ‘‘triplet’’?
1 Beadle and Tatum
2 Nirenberg and Matthaei
3 Hershey and Chase
4 Morgan and Sturtevant

Answer: Nirenberg and Matthaei

Random GK Questions

Q. The duties levied on alcoholic liquors, narcotic drugs and opium come under-
Q. “It begins as a single cell and grows into a merciless disease that claims millions of lives year after year. But scientist are steadily unlocking its mysteries and the fight against it, may now have reached a dramatic turning point. New discoveries promise better therapies and hope in the war against ……… “. The disease referred to in the above quotation is
Q. Which one of the following is a non-poisonous snake?
Q. The floral part that produces pollen grains is
Q. The Headquarters of International Labour Organisation is located at
Q. The type of note issue system followed in India is:

Chapters

Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series