Q.1
Children have A and B types of blood. What are the blood types of parents ... .. [ KCET 2002]
  • a) A and O
  • b) AB and A
  • c) AB and O
  • d) A and B
Q.2
Genetically identical progeny is produced when the individual ... .. [ AFMC 1994 ]
  • a) Performs self fertilization
  • b) Produces identical gametes
  • c) Practices inbreeding without meiosis
  • d) Practices reproduction
Q.3
Variations appear during meiosis due to .... [BHU 2008] (i) Independent assortment (ii) Crossing over (iii) Linkage (iv) Glycolysis Select the correct code
  • a) 1, 2, 3 correct
  • b) 1,2 correct
  • c) 2, 4 correct
  • d) 1, 3 correct
Q.4
In Mirabilis jalapa, RR, Rr and rr determine red, pink and white colours respectively. When F1 hybrid of RR and rr was crossed with dominant parent, the ratio produced is ... .. [ RPMT 2002 ]
  • a) All red
  • b) 2 red : 2 pink
  • c) all white
  • d) 2 pink : 2 white
Q.5
If two Pea plants having red ( dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. the genotype constitution of the two parents would be
  • a) Both homozygous
  • b) Both heterozygous
  • c) Both heizygous
  • d) One homozygous and other heterozygous
Q.6
First geneticist/ father of genetics was ... ... [ CBSE 1991 ]
  • a) De Vries
  • b) Mendel
  • c) Darwin
  • d) Morgan
Q.7
B-blood group man marries A blood group woman. the first child has B-blood group. Genotype of the child is .... [ CPMT 2004 ]
  • a) IAIO
  • b) IBIO
  • c) IAIB
  • d) IBIB
Q.8
Phenotypic ratio of monohybrid F2 progeny of incomplete dominance is ... .. [ RPMT 1998 ]
  • a) 1:1:1:1
  • b) 2:1:1
  • c) 1:2:1
  • d) 3:1
Q.9
In lathyrus odoratus, cross between two purple flowered plants gives a pink/white progeny. it is due to ... ... [ BHU 1998 ]
  • a) Codominance
  • b) incomplete dominance
  • c) Epistasis
  • d) Segregation
Q.10
The term genetics was proposed by ... .. [ MPPMT 2007 ]
  • a) Johannsen
  • b) Morgan
  • c) Mendel
  • d) Bateson
Q.11
If both parents are albino, all the offspring shall be ... .. [ BHU 1999 ]
  • a) Albino
  • b) Some albino, some normal
  • c) Homozygous normal
  • d) Heterozygous normal
Q.12
Heterozygous tall ( Tt) is crossed with homozygous tall (TT). Percentage of heterozygous tall in the progeny would be ... .. [ AMU 2001]
  • a) 25%
  • b) 50%
  • c) 75%
  • d) 100%
Q.13
A brown eyed couple has a blue-eyed child. The trait of brown eye (B) is dominant over blue-eye (b). What is the genotype of the couple?
  • a) Bb × Bb
  • b) BB × BB
  • c) BB × Bb
  • d) BB × bb
Q.14
A child of O-group has B-group father. the genotype of father will be ... ... [ CBSE 1992 ]
  • a) IOIO
  • b) II
  • c) IAIB
  • d) IBIO
Q.15
Incomplete dominance was discovered by ... .. [ RPMT 2005]
  • a) Correns
  • b) Mendel
  • c) Johannsen
  • d) Bateson
Q.16
tt mates with Tt. What will be characteristic of offspring? .... ... [ CBSE 1990 ]
  • a) 75% recessive
  • b) 50% recessive
  • c) 25% recessive
  • d) All dominant
Q.17
on Q328) How many different gametes will be produced by a plant having the genotype AABbCC?
  • a) Two
  • b) Three
  • c) Four
  • d) Nine
Q.18
Self fertilizing trihybrid plants form ... .. [ CBSE 2004 ]
  • a) Eight different gametes and 64 different zygotes
  • b) Four different gametes and sixteen different zygotes
  • c) Eight different gametes and sixteen different zygotes
  • d) Eight different gametes and thirty two different zygotes
Q.19
Allelomorphic pair implies ... .. [ MPPMT 1997 ]
  • a) A pair of contrasting characters
  • b) A pair of non-contrasting characters
  • c) Any two characters
  • d) Sex-linked characters
Q.20
A homozygous red flowered Pea plant is crossed with homozygous white flowered Pea plant. The offspring would be ... ... [ AIIMS 2002 ]
  • a) 50% red flowered
  • b) 50% pink flowered
  • c) All red flowered
  • d) All pink flowered
Q.21
A cross between pure tall Pea plant with green pods and dwarf Pea plant with yellow pods will produce tall F2 plants, out of 16 ... .. [ CPMT 2000 ]
  • a) 15
  • b) 13
  • c) 12
  • d) 7
Q.22
In Pisum sativum there are 14 chromosomes. how many pairs with different chromosomal composition can be prepared? ... .. [ BHU 2005 ]
  • a) 214
  • b) 27
  • c) 7
  • d) 14
Q.23
Assertion : The linked genes tend to get inherited together. Reason : The bond between them fails to break
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b) The Assertion and Reason are true but Reason is not correct explanation of Assertion
  • c) Assertion is true but, Reason is false
  • d) Assertion is false but, Reason is true
Q.24
Theory of pangenesis was given by ... .. [ Pb PMT 2007 ]
  • a) Weismann
  • b) De Vries
  • c) Darwin
  • d) Lanmarck
Q.25
Which blood group can safely be transfused in emergency when there is no time to analyse the blood group of recipient? ... .. [ MPPMT 2009 ]
  • a) O and Rh-
  • b) O and Rh+
  • c) B and Rh-
  • d) AB and Rh+
Q.26
A cross between F1 hybrid and recessive parent give a ratio of ... ... [ manipur 2009]
  • a) 3:1
  • b) 1:1
  • c) 2:1
  • d) 4:1
Q.27
All are dominant traits studied by Mendel ... .. [ AMU 2012 ]
  • a) Axial flower, green pod, green seed
  • b) Green pod, inflated pod, axial flower
  • c) Yellow seed, violet flower, yellow pod
  • d) Rounded seed, constricted pod, axial flower
Q.28
Which amino acid is substituted in sickle cell anaemia? .... [ AFMC 1997 ]
  • a) Glutamic acid by valine in α-chain
  • b) Glutamic acid by valine in β-chain
  • c) Valine by glutamic acid in β-chain
  • d) Valine by glutamic acid in α-chain
Q.29
An allele is dominant if it is expressed in ... ... [ CBSE 1992 ]
  • a) Both homozygous and heterozygous states
  • b) Second generation
  • c) Heterozygous combination
  • d) Homozygous combination
Q.30
Variation found in offspring are important component of ... ... [ DPMT 2011]
  • a) Genetics
  • b) Speciation
  • c) Species fixation
  • d) Heredity
Q.31
An allele contributed by one parent is IA and allele contributed by the other parent is i the bloodgroup of off spring will be .... ... [ DPMT2011]
  • a) A
  • b) AB
  • c) B
  • d) O
Q.32
Mendel's law of independent assortment is based on F2 ratio of ... ... [ RPMT 1996 ]
  • a) 1:2:1
  • b) 9:3:3:1
  • c) 2:1
  • d) 3:1
Q.33
Biometric genetics is connected with ... .. [ AMU 2002 ]
  • a) Effect of radiations on living organisms
  • b) Biochemical explanation of genetic phenomena
  • c) Effect of environment on genetic set up of organisms
  • d) Inheritance of quantitative traits
Q.34
Mendel's last law is ... ... [ CBSE 1991 ]
  • a) Segregation
  • b) Dominance
  • c) Independent assortment
  • d) Polygenic inheritance
Q.35
What should be the composition of gametes? [Manipal 2003 ]
  • a) GgLl
  • b)Ggl
  • c) Gg
  • d) Gl
Q.36
Hybrid vigour is due to ... .. [ DPMT 1999 ]
  • a) Mixing of traits of male and female
  • b) Homozygosity in gamete state
  • c) Superiority of genes
  • d) Heterozygosity
Q.37
A gamete normally contains ... .. [ KCET 2002 ]
  • a) Many alleles of gene
  • b) All alleles of gene
  • c) Two alleles of gene
  • d) One allele of gene
Q.38
A genetic disorder in African which reduces oxygen uptake is ... .. [ BHU 1998 ]
  • a) Haemophilia
  • b) Pernicious anaemia
  • c) Anaemia
  • d) Sickle cell anaemia
Q.39
Which mutation / variation is not hereditary .... .. [ MPPMT 2012]
  • a) Genetic
  • b) Gametic
  • c) Somatic
  • d) Germinal
Q.40
Which is dominant trait? [ MPPMT 2007 ]
  • a) Colour blindness
  • b) Albinism
  • c) Haemophilia
  • d) Rh+ factor
Q.41
Which of the following is correct for dihybrid cross? ... ... [ RPMT 2006]
  • a) 1YYRR, 2 YyRR, 2yyRr, 4YyRr
  • b) 1YYRR, 3YyRR, 2yyRr, 3YyRr
  • c) 3YYRR, 3YyRR, 2yyRr,4YyRr
  • d) 1YYRR, 1YyRR, 2yyRr, 3YyRr
Q.42
O group mother with O group child sues AB group man for fathership of child. What is true? [ MPPMT 1994 ]
  • a) The claim is correct
  • b) Father is true but mother is not
  • c) Both parents are false
  • d) Mother is true but father claimed is wrong
Q.43
Which one is a dominant trait out of characters chosen by Mendel ? [ Manipal 2000 ]
  • a) Pod colour - Yellow
  • b) Seed colour - White
  • c) Flower Position - Axillary
  • d) Plant height - Dwarf
Q.44
Blood group A person can ... ...
  • a) Be parent of child with B blood group
  • b) Possess only B-antigen
  • c) safely receives blood from donor of B-group
  • d) Possess both antigens A and B
Q.45
factors present on the surface of RBCs which are related to heredity are .. .. [ AFMC 2003 ]
  • a) Blood groups
  • b) Haemoglobin
  • c) Antigens
  • d) Antibodies
Q.46
Non-allelic genes having similar phenotypic effect, interact to produce a different trait and a ratio of 9:7 in F2 generation are ... ... [ CBSE 2001 ]
  • a) Epistatic genes
  • b) Hypostatic genes
  • c) Supplementary genes
  • d) Complementary genes
Q.47
Number of phenotypes possible from AaBbCc × AaBbCc is .... [ RPMT 1998 ]
  • a) 16
  • b) 12
  • c) 8
  • d) 4
Q.48
Which is true? [ BHU 1997 ]
  • a) Etiolation is genetic while albinism is physiological
  • b) Etiolation is not reversible
  • c) Etiolation is physiological but albinism is genetic
  • d) Etiolation and alinism are synonyms
Q.49
Number of genotypes found in F2 progeny of a dihybrid cross is ... .. [ MPPMT 2001 ]
  • a) 9
  • b) 6
  • c) 3
  • d) 1
Q.50
In the cross YYRRxyyrr, the number of green coloured seeds in F2 generation is ... .. [ AMU 2012 ]
  • a) 8/16
  • b) 6/16
  • c) 4/16
  • d) 2/16
0 h : 0 m : 1 s