Q.1.
on Q409) , has been mutated to , the type of gene mutation happened in DNA is:
-
0%
a) Transition only.
-
25%
b) Transversion only.
-
50%
c) Transition and transversion.
-
25%
d) Frame shift mutation.
Q.2.
on Q410) Which one of the following symbols and its representation, used in human pedigree analysis is correct?
-
50%
a)
-
50%
b)
-
0%
c)
-
0%
d)
Q.3.
on Q411) The mapping of genes on chromosome was attempted by
-
25%
a) T. H. Morgan
-
25%
b) Walter Sutton
-
25%
c) Alfred Sturtevant
-
25%
d) Henking
Q.4.
on Q412) In the results, F2 generation of Mendelian dihybrid cross in pea plant. The ratio of green and wrinkled seeded pea plant is
-
0%
a) 1/16
-
33%
b) 3/16
-
67%
c) 4/16
-
0%
d) 7/16
Q.5.
on Q413) If F2 dwarf plants were self-pollinated then the genotype of F3 & F4 plants is
-
0%
a) TT and Tt
-
100%
b) tt and tt
-
0%
c) tt and Tt
-
0%
d) Tt and Tt
Q.6.
on Q414) How many laws of Mendel are based on monohybrid cross?
-
33%
a) 1
-
33%
b) 2
-
33%
c) 3
-
0%
d) 4
Q.7.
on Q415) Who is known as father of physiological genetics or father of biochemical genetics?
-
0%
a) Slatyer
-
67%
b) Charles Elton
-
0%
c) Taylor
-
33%
d) Archibald Garrod
Q.8.
on Q416) Consider the cross AaBb x AaBb. If the alleles for both genes exhibit complete dominance, what genotypic ratio is expected in the resulting offspring?
-
33%
a) 1:1:1:1
-
67%
b) 9:3:3:1
-
0%
c) 3:6:3:1:2:1
-
0%
d) 1:2:1:2:4:2:1:2:1
Q.9.
on Q417) The genotypes of a husband and wife are IA IB and IAi. Among the blood types of their children, how many different genotypes and phenotypes are possible?
-
100%
a) 3 genotypes; 3 phenotypes
-
0%
b) 3 genotypes; 4 phenotypes
-
0%
c) 4 genotypes; 3 phenotypes
-
0%
d) 4 genotypes; 4 phenotypes
Q.10.
on Q418) Self fertilising trihybrid plants from
-
0%
a) Eight different gametes and 64 different zygotes
-
100%
b) Four different gametes and sixteen different zygotes
-
0%
c) Eight different gametes and sixteen different zygotes
-
0%
d) Eight different gametes and thirty two different zygotes
Q.11.
on Q419) If a dwarf pea plant which is treated with growth regulators becomes a tall plant, which on selfing gives:
-
0%
a) Only dwarf plants.
-
0%
b) Only tall plants.
-
100%
c) Tall and dwarf in 3: 1 ratio.
-
0%
d) Tall and dwarf in 1: 1 ratio.
Q.12.
on Q420) By which gene sex is determind in Spinach ?
-
100%
a) Single gene "m" located in the X- chromosome
-
0%
b) Single gene "m" located in the Y- chromosome
-
0%
c) Single gene "t" located in the X- chromosome
-
0%
d) Single gene "t" located in the Y- chromosome
Q.13.
on Q421) Which technique is used by Mendel for hybridization ?
-
0%
a) Emasculation
-
0%
b) Bagging
-
0%
c) Protoplast fusion
-
100%
d) Both A & B
Q.14.
on Q422) Types of phenotypes of F2 generation of dihybrid cross ?
-
50%
a) 4
-
50%
b) 16
-
0%
c) 8
-
0%
d) 9
Q.15.
on Q423) Genetic balance theory for sex determination in Drosophila was proposed by
-
0%
a) Prof. R. P. Roy
-
100%
b) H. E. Warmbe
-
0%
c) C.B. Bridges
-
0%
d) Mc. Chang
Q.16.
on Q424) A cross between hybrid and a parent is known as
-
0%
a) Test cross
-
0%
b) Back cross
-
0%
c) Monohybrid cross
-
100%
d) Reciprocal cross
Q.17.
on Q425) What is the basis of pleiotropy?
-
0%
a) A spontaneous mutation during the replication of DNA.
-
100%
b) Interrelationship between various metabolic pathways in the body.
-
0%
c) Chromosomal aberration as chromosomes are the vehicles of genes.
-
0%
d) the behaviours of chromosomes during meiosis or gamete formation.
Q.18.
on Q426) Assertion (A) :- Crossing over leads to genetic variation. Reason (R) :- Crossing over causes recombination of characters.
-
100%
a) If both (A) and (R) are true and (R) is the correct explanation of (A)
-
0%
b) If both (A) and (R) are true but (R) is not the correct explanation of (A)
-
0%
c) If (A) is true but (R) is false
-
0%
d) If both (A) and (R) are false.
Q.19.
on Q427) A woman with 47 chromosomes due to 3 copies of chromosome 21 is characterized by
-
0%
a) Super Femaleness
-
50%
b) Triploidy
-
50%
c) Turner's Syndrome
-
0%
d) Down's Syndrome
Q.20.
on Q428) Represented below is the inheritance pattern of a certain type of trait in humans. Which one of the following conditions could be an example of this pattern?
-
0%
a) Phenyl ketonuria
-
0%
b) Sickle Cellanaemia
-
100%
c) Haemophilia
-
0%
d) Thalassemia
Q.21.
on Q429) Name the abnormality seen in chromosome number – 2
-
0%
a) Interstitial Deletion
-
50%
b) Terminal Deletion
-
50%
c) Tandem Duplication
-
0%
d) Reverse Duplication
Q.22.
on Q430) Observe the following genotype of parents who are about to mate: RrYyTtGg × RRYyTtGg; if you are asked to draw a punnet square to represent their offsprings, how many boxes will you put in the square?
-
0%
a) 64
-
100%
b) 32
-
0%
c) 128
-
0%
d) 256
Q.23.
on Q431) A homozygous grey bodied, long winged Drosophila is crossed with homozygous black bodied vestigial wings. The F1 is test crossed and we get; Grey bodied long wings – 470, Grey bodied vestigial wings – 185, Black bodied vestigial wings – 450 and black bodied long wings –What is the distance between the genes for body colour and wings shape of Drosophila?
-
0%
a) 14cM.
-
0%
b) 72cM.
-
100%
c) 28cM.
-
0%
d) 36cM.
Q.24.
on Q432) Which one of the following condition in humans is correctly matched with its chromosomal abnormality/linkage?
-
0%
a) Erythroblastosis foetalis - X-linked.
-
50%
b) Down syndrome - 44 autosomes + XO.
-
50%
c) Klinefelter's syndrome - 44 autosomes + XXY.
-
0%
d) Colour blindness - Y-linked.
Q.25.
on Q433) Which of the following terms best describes when the phenotype of the heterozygote differs from the phenotypes of both homozygotes?
-
100%
a) Incomplete dominance
-
0%
b) Multiple alleles
-
0%
c) Co dominance
-
0%
d) Epistasis
Q.26.
on Q434) Law of Independent Assortment is not applicable to
-
0%
a) Linked genes
-
0%
b) Genes on different chromosomes
-
0%
c) Distantly located gene
-
100%
d) both (2) and (3)
Q.27.
on Q435) Trait expressed in F1 generation is
-
50%
a) Parental
-
0%
b) Recessive
-
50%
c) Dominant
-
0%
d) Recombinant
Q.28.
on Q436) Mendel was born in
-
0%
a) 19th century.
-
50%
b) 18th century.
-
50%
c) 17th century.
-
0%
d) 20th century.
Q.29.
on Q437) James Watson and Francis Crick got Nobel prize in the year
-
50%
a) 1960
-
50%
b) 1962
-
0%
c) 1959
-
0%
d) 1953
Q.30.
on Q438) Which of the following occurs due to monosomy of sex chromosome?
-
0%
a) Down's syndrome
-
50%
b) Turner's syndrome
-
50%
c) Haemophilia
-
0%
d) Sickle cell anaemia
Q.31.
on Q439) Base substitutions from base analogues I are called
-
0%
a) transitions
-
50%
b) transversions
-
50%
c) intragenic complementation
-
0%
d) intergenic complementation
Q.32.
on Q440) A woman with normal vision, but whose father was colourblind, marries a colourblind man. Suppose that the fourth child of this couple was a boy. This boy
-
33%
a) May be colourblind or may be of normal vision
-
0%
b) Must be colourblind
-
0%
c) Must have normal colour vision
-
67%
d) Will be partially colourblind since he is heterozygous for the colourblind mutant allele.
Q.33.
on Q441) F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1 : 2 : 1 . It represents in case of AIPMT - 2012
-
50%
a) Co - Dominance
-
0%
b) Dihybrid Cross
-
50%
c) Monohybrid cross with complete dominance
-
0%
d) Monohybrid cross with incomplete dominance
Q.34.
on Q442) The value of X/A is given in column A and sex of the fly is written in column B. Match the following :-
| Column I | Column II |
| 1 | (a) Normal Male |
| 1.5 | (b) super male Sterile |
| 0.67 | (c) inter sex |
| 0.33 | (d) super Female sterile |
| 0.5 | (e) Normal Female |
-
0%
a) (1 - a) (2 - d) (3 - c) (4 - e) (5 - b)
-
0%
b) (1 - e) (2 - d) (3 - c) (4 - b) (5 - a)
-
0%
c) (1 - b) (2 - a) (3 - c) (4 - d) (5 - e)
-
0%
d) (1 - e) (2 - c) (3 - d) (4 - a) (5 - b).
Q.35.
on Q443) which cross yielded a ratio of 7:1 :1:7 ?
-
100%
a) Test cross (Dihybrid) - Bateson and punnet
-
0%
b) Test cross (Monohybrid) - Bateson and punnet
-
0%
c) Test cross (Dihybrid) - Carrel correns
-
0%
d) Test cross ( Dihybrid) - Mendel & Morgan
Q.36.
on Q444) “Gametes are never hybrid”. This is a statement of:
-
0%
a) Law of dominance.
-
0%
b) Law of independent assortment.
-
0%
c) Law of segregation.
-
100%
d) Law of random fertilization.
Q.37.
on Q445) Percentage of recombination between A and B is 9% and C is 17%, B and C is 26%, then what is the arrangement of genes?
-
0%
a) ABC.
-
0%
b) ACB.
-
100%
c) BCA.
-
0%
d) BAC.
Q.38.
on Q446) Excessive growth of hair on the pinna is a feature found only in males because:
-
100%
a) The gene responsible for the character is recessive in females and dominant only in males.
-
0%
b) The character is induced in males as males produce progesterone.
-
0%
c) The female sex hormone oestrogen suppresses the character in females.
-
0%
d) The gene responsible for the character is present on the Y chromosome only.
Q.39.
on Q447) ABO blood groups is determined by three different alleles. How many genotypes and phenotypes are possible?
-
0%
a) Genotype – 3, phenotype – 1.
-
0%
b) Genotype – 6, phenotype – 4.
-
100%
c) Genotype – 4, phenotype – 6.
-
0%
d) Genotype – 9, phenotype – 7.
Q.40.
on Q448) Conditions of a karyotype 2n ± 1 and 2n ± 2 are called:
-
0%
a) Aneuploidy.
-
0%
b) Polyploidy.
-
100%
c) Allopolyploidy.
-
0%
d) Monosomy.
Q.41.
on Q449) If a character is controlled by 5 alleles, what will be the number of genotype in this case?
-
0%
a) 12
-
100%
b) 18
-
0%
c) 30
-
0%
d) 15
Q.42.
on Q450) Mendelian disorders are caused by
-
0%
a) Mutation in the single chromosome
-
100%
b) Mutation in the single gene
-
0%
c) Polyploidy
-
0%
d) Aneuploidy
Q.43.
on Q451) Mutation causes
-
0%
a) alterations at protein level
-
0%
b) changes in genotype only
-
100%
c) changes in phenotype
-
0%
d) both (2) and (3)
Q.44.
on Q452) Who was the first to use statistical analysis and mathematical logics for solving biological problems?
-
0%
a) Francis crick
-
100%
b) Gregor Mendel
-
0%
c) Hugo de Vries
-
0%
d) W. Bateson
Q.45.
on Q453) Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridised, then F2 segregation will show:
-
0%
a) higher number of the recombinant types
-
100%
b) segregation in the expected 9: 3: 3: 1 ratio
-
0%
c) segregation in 3: 1
-
0%
d) higher number of the parental types
Q.46.
on Q454) Mutations can be induced with
-
0%
a) IAA
-
0%
b) ethylene
-
0%
c) gamma radiations
-
100%
d) infra red radiations
Q.47.
on Q455) Among the following characters, which one was not considered by Mendel in his experiments on pea?
-
0%
a) Stem - Tall or Dwarf
-
100%
b) Trichomes - Glandular or Non-glandular
-
0%
c) Seed - Green or Yellow
-
0%
d) Pod - Inflated or Constricted
Q.48.
on Q456) When Morgan hybridised yellow-bodied, white-eyed females to brown-bodied, red-eyed males and intercrossed their F1 progeny, the F2 ratio deviated very significantly from the 9:3:3:1 ratio. this can be attributed to the fact that:
-
100%
a) The genes are located on X and Y chromosomes
-
0%
b) Fruit fly has abnormal chromosomes
-
0%
c) The genes are located on the X chromosome
-
0%
d) the genes exhibit incomplete dominance
Q.49.
on Q457) Genes which code for a pair of contrasting traits or slightly different forms of the same gene are known as
-
0%
a) Alleles
-
0%
b) Loci
-
100%
c) Cistrons
-
0%
d) Introns
Q.50.
on Q458) Mutations which are not dominant are not lost by a gene pool this is known as
-
0%
a) Survival of the dominant
-
0%
b) Survival of the recessive
-
100%
c) Hardly-Weinberg law
-
0%
d) None of these