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WorksheetsMOLECULAR BASIS OF INHERITANCE - Quiz 4
Total questions: 10
Worksheet time: 4mins
Which site of the tRNA pairs through hydrogen bonding with the triplet codon on mRNA?
Codon
5’ end of tRNA
3’ end of tRNA
Anticodon
What is nucleosome?
A vesicle containing positively charged histones within nucleolus
They are similar to endosomes
A structure formed by wrapping of negatively charged DNA around positively charged histone octamer.
They are the transforming principles discovered by Griffith
The deflection of pitch angle between two successive steps (rungs) of DNA is
72o
54o
36o
18o
In a 3.2 Kbp long piece of DNA, 820 adenine bases were found. What would be the number of cytosine bases?
780
1560
740
1480
Which molecule has its synthesis directly controlled by DNA?
Amylase
Cholesterol
Glycogen
Phospholipid
Which one of the following is not applicable to RNA?
Heterocyclic nitrogenous bases
Chargaff’s rule
Complementary base pairing
5’ phosphoryl and 3’ hydroxyl ends
Nucleosome core is intimately associated with :
160 bp of DNA
210 bp of DNA
250 bp of DNA
100 bp of DNA
Who proved experimentally that DNA is genetic material?
O. Avery and Colleagues
J. Waston and F. Crick
W. Arber and Colleagues
G. Mendel
The nucleosome structure of eukaryotic chromatin is due to all of the following histones, except
H1
H2A
H2B
H3
The association of histone H1 with a nucleosome indicates:
DNA replication is occurring.
The DNA is condensed into a Chromatin Fibre.
The DNA double helix is exposed.
Transcription is occurring.
