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question_answer1)
Mutation rates are affected by
A)
temperature done
clear
B)
X-rays done
clear
C)
gamma and beta radiation done
clear
D)
All of the above done
clear
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question_answer2)
A dihybrid condition is
A)
tt Rr done
clear
B)
Tt rr done
clear
C)
tt rr done
clear
D)
Tt Rr done
clear
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question_answer3)
In case of incomplete dominance the monohybrid ratio of phenotypes in \[{{F}_{2}}\] generation is
A)
1 : 2 : 1 done
clear
B)
3 : 1 : 1 done
clear
C)
9 : 3 : 3 : 1 done
clear
D)
2 : 3 : 1 done
clear
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question_answer4)
The number of autosomes in human female ovum is
A)
11 done
clear
B)
12 done
clear
C)
22 done
clear
D)
23 done
clear
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question_answer5)
Which one of the following represents a test cross?
A)
\[Ww\times WW\] done
clear
B)
\[Ww\times Ww\] done
clear
C)
\[Ww\times ww\] done
clear
D)
\[WW\times WW\] done
clear
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question_answer6)
How many different kinds of gametes will be produced by a plant having the genotype AABbCC?
A)
Nine done
clear
B)
Two done
clear
C)
Three done
clear
D)
Four done
clear
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question_answer7)
How many pairs of contrasting characters in pea pod were chosen by Mendel?
A)
2 done
clear
B)
3 done
clear
C)
4 done
clear
D)
7 done
clear
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question_answer8)
From a cross AABb x aaBb, the genotypes AaBB: AaBb: Aabb: aabb will be obtained in the following ratio
A)
1:1:1:1 done
clear
B)
1:2:1:0 done
clear
C)
0:3:1:0 done
clear
D)
1:1:1:0 done
clear
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question_answer9)
A nucleotide is formed of
A)
purine, pyrimidine and phosphate done
clear
B)
purine, sugar and phosphate done
clear
C)
nitrogenous bases, sugar and phosphate done
clear
D)
pyrimidine, sugar and phosphate done
clear
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question_answer10)
The process of translation is
A)
ribosome synthesis done
clear
B)
protein synthesis done
clear
C)
DNA synthesis done
clear
D)
RNA synthesis done
clear
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question_answer11)
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
A)
Thymine, Uracil - Pyrimidines done
clear
B)
Uracil, Cytosine - Pyrimidines done
clear
C)
Guanine, Adenine - Purines done
clear
D)
Adenine, Thymine - Purines done
clear
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question_answer12)
Ligase helps in
A)
removal of few genes done
clear
B)
translation done
clear
C)
inserting few genes in DNA done
clear
D)
bringing transversion in chromosomes done
clear
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question_answer13)
A nucleoside differs from a nucleotide in not having
A)
phosphate done
clear
B)
sugar done
clear
C)
nitrogen base done
clear
D)
phosphate and sugar done
clear
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question_answer14)
Nucleotide arrangement in DNA can be seen by
A)
X-ray crystallography done
clear
B)
Electron microscope done
clear
C)
Ultracentrifuge done
clear
D)
Light microscope done
clear
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question_answer15)
Scientific name of man is
A)
Cams familiaris done
clear
B)
Homo habilis done
clear
C)
Homo erectus done
clear
D)
Homo sapiens done
clear
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question_answer16)
The primitive atmosphere of earth contained water vapours, hydrogen, ammonia and
A)
\[C{{O}_{2}}\] done
clear
B)
\[{{O}_{2}}\] done
clear
C)
\[{{N}_{2}}\] done
clear
D)
\[C{{H}_{4}}\] done
clear
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question_answer17)
The book' Origin of Species' is written by
A)
Aristotle done
clear
B)
Darwin done
clear
C)
Watson done
clear
D)
Lamarck done
clear
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question_answer18)
Which was absent in the atmosphere at the time of origin of life?
A)
\[N{{H}_{3}}\] done
clear
B)
\[{{H}_{2}}\] done
clear
C)
\[{{O}_{2}}\] done
clear
D)
\[C{{H}_{4}}\] done
clear
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question_answer19)
Homologous organs are
A)
wings of insects and bat done
clear
B)
gills of fish and lungs of rabbit done
clear
C)
pectoral fins of fish and fore limbs of horse done
clear
D)
wings of grosshopper and crow done
clear
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question_answer20)
The kind of evolution in which two species of different geneology come to resemble one another closely, is termed as
A)
progressive evolution done
clear
B)
convergent evolution done
clear
C)
parallel evolution done
clear
D)
retrogressive evolution done
clear
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question_answer21)
Which one is linked to evolution?
A)
Extinction done
clear
B)
Competition done
clear
C)
Variation done
clear
D)
Reproduction done
clear
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question_answer22)
Genetic variation in a population arises due to
A)
Mutations only done
clear
B)
Recombination only done
clear
C)
Mutations as well as recombination done
clear
D)
Reproductive isolation and selection done
clear
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question_answer23)
The first organisms were
A)
Chemoautotrophs done
clear
B)
Chemo heterotrophs done
clear
C)
Autotrophs done
clear
D)
Eukaryotes done
clear
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question_answer24)
What was the most significant trend in evolution of modem man (Homo sapiens) from his ancestors?
A)
Upright posture done
clear
B)
Shortening of jaws done
clear
C)
Binocular vision done
clear
D)
Increasing brain capacity done
clear
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question_answer25)
The factors which represent the contrasting pairs of characters are called
A)
dominant and recessive done
clear
B)
alleles done
clear
C)
homologous pairs done
clear
D)
determinants done
clear
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question_answer26)
Who proved that DNA is basic genetic material?
A)
Griffith done
clear
B)
Watson done
clear
C)
Boveri and Sutton done
clear
D)
Hershey and Chase done
clear
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question_answer27)
The two strands of DNA are held together by
A)
peptide bonds done
clear
B)
phosphodiester bonds done
clear
C)
hydrogen bonds done
clear
D)
S - S bonds done
clear
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question_answer28)
According to special creation theory the earth is about
A)
4000 yrs old done
clear
B)
4.5 M yrs old done
clear
C)
4.5 B yrs old done
clear
D)
10000 yrs old done
clear
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question_answer29)
Which of the following is not a part of Darwin's theory of evolution?
A)
Genetic drift done
clear
B)
Natural selection done
clear
C)
Survival of the fittest done
clear
D)
Struggle for existence done
clear
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question_answer30)
In Down's syndrome of a male child, the sex complement is
A)
XO done
clear
B)
XY done
clear
C)
XX done
clear
D)
XXY done
clear
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