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Molecular Basis Of Inheritance

394 Questions Start Allen Test
All Exams Allen
Q151 Allen 6. MUTATION MCQ
In the octaploid wheat (56), the haploid (n) and basic numbers (x) of chromosomes are:
A.
n = 21, x = 7
B.
n = 28, x = 7
C.
n = 7 x = 28
D.
n = 7, x = 21
Q152 Allen 6. MUTATION MCQ
The smallest unit of genetic material which upon mutation produce a phenotypic effect is:
A.
Mutons
B.
Recon
C.
Gene
D.
Cistron
Q153 Allen 6. MUTATION MCQ
Ultimate source of genetic variation is (OR) the process which provides raw material for evolution is:-
A.
Sexual reproduction
B.
Meiosis
C.
Mutation
D.
Independent assortment
Q154 Allen 6. MUTATION MCQ
Type of gene mutation which involves replacement of purine with pyrimidine or vice versa (OR) The substitution of one type of base with another type of base is :-
A.
Transduction
B.
Transversion
C.
Translocation
D.
Transcription
Q155 Allen 6. MUTATION MCQ
The minimum requirement for mutation is:-
A.
Change of triplet codon
B.
Change in single nucleotide
C.
Change in whole DNA
D.
Change in single strand of DNA
Q156 Allen 6. MUTATION MCQ
Mutations are :-
A.
Always useful
B.
Mostly useful
C.
Never useful
D.
Rarely useful BMI152
Q157 Allen 6. MUTATION MCQ
Sickle cell anaemia is an example of :-
A.
Frame shift mutation
B.
Point mutation
C.
Segmental mutation
D.
Gibberish mutation BMI153
Q158 Allen 6. MUTATION MCQ
The most striking example of frame shift mutation was found in a disease called :-
A.
Sickle cell anaemia
B.
Colour blindness
C.
Lesch-Nyhan Syndrome
D.
Thalassemia
Q159 Allen 6. MUTATION MCQ
A nutritionally wild type organism, which does not require any additional growth supplement is known as :-
A.
Holotype
B.
Auxotroph
C.
Prototroph
D.
Phenotype
Q160 Allen 6. MUTATION MCQ
Given below is the representation of a kind of chromosomal mutation : What is the kind of mutation represented? A B C D E F G H A E F G H D C B
A.
deletion
B.
duplication
C.
inversion
D.
reciprocal translocation
Q161 Allen 6. MUTATION MCQ
The "cri-du-chat" syndrome is caused by change in chromosome structure involving:-
A.
Deletion
B.
Duplication
C.
Inversion
D.
Translocation
Q162 Allen 6. MUTATION MCQ
A class of mutation induced by addition or deletion of a nucleotide is called :-
A.
Missense
B.
Non-sense
C.
Substitution
D.
frame shift
Q163 Allen 6. MUTATION MCQ
Chromosomes with genes abcdefg becoming abedcfg is :-
A.
duplication
B.
deletion
C.
translocation
D.
inversion
Q164 Allen 6. MUTATION MCQ
Gene mutation is :-
A.
change in the number of chromosome
B.
mutation in the phosphodiester linkage
C.
mutation in the chromosomes
D.
change in the sequence of nitrogenous bases
Q165 Allen 6. MUTATION MCQ
Chromosome number 2n-1 is an example of:-
A.
trisomy
B.
euploidy
C.
polyploidy
D.
monosomy
Q166 Allen 6. MUTATION MCQ
After a mutation at a genetic locus the character of an organism changes due to the change in :-
A.
protein structure
B.
DNA replication
C.
protein synthesis pattern
D.
RNA transcription pattern.
Q167 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
DNA finger printing was invented by :ā€”
A.
Kary Mullis
B.
Alec Jeffery
C.
Dr. Paul Berg
D.
Francis Collins
Q168 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
Which one of the following pairs of terms/ names mean one and the same thing
A.
Gene pool ā€” genome
B.
Codon ā€” gene
C.
Cistron ā€” triplet
D.
DNA Fingerprinting ā€” DNA profiling
Q169 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
Which step does not involve in DNA finger printing-
A.
Southern blotting
B.
Gel electrophoresis
C.
Restriction enzyme digestion
D.
Northern blotting
Q170 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
The technique of transferring DNA fragment separated on agarose gel to a synthetic membrane such as nitrocellulose is known as-
A.
Northern blotting
B.
Southern blotting
C.
Western blotting
D.
Dot blotting DMI1CC
Q171 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
Western blotting is used for the identification of :-
A.
DNA
B.
RNA
C.
Protein
D.
All the above
Q172 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
The approximate number of genes contained in the genome of Kalpana Chawla was :-
A.
40,000
B.
30,000
C.
80,000
D.
1,00,000
Q173 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
The transfer of protein from electrophoretic gel to nitrocellulose membrane is known as
A.
transferase
B.
northern blotting
C.
western blotting
D.
southern blotting
Q174 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
Which of the following is not associated with HGP ?
A.
Bioinformatics
B.
cloing C & YAC
C.
Automated DNA sequencers
D.
VNTR
Q175 Allen 7. DNA FINGERPRINTING, HUMAN GENOME PROJECT MCQ
In density gradient centrifugation, the bulk DNA forms while satellite DNA forms
A.
Major peak; Minor peak
B.
Minor peak; Major peak
C.
Major peak; Major peak
D.
Minor peak; Minor peak