principles of variationkea.kar.nic.in/cet2014/vikasana/biology/day_05.pdf · exhibited by holandric...
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PRINCIPLES OF
INHERITANCE
AND
VARIATION
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Q. How many types of gametes
are produced by individual
having AaBbCC genotype?
2. Two
3. Four
1. One
4. Many
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Q. Assortment or segregation of
genes takes place during
1. Fertilization
2. Separation of gametes
3. Formation of gametes
4. Death of gametes
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Q. In persons with sickle cell
anaemia , the sixth aminoacid,
glutamic acid in β-chain of
haemoglobin molecule is
replaced by
1. Serine 2. Valine
3. Methionine 4. Phenylalanine
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Q. A woman with B blood group
marries a man with AB blood
group, which of the following
blood group of children indicate
that woman is heterozygous ?
3. AB
1. A
4. O
2. B
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Q. Which of the following is the
chromosomal complement
(genotype) of a person
suffering from Klinefelter’s
syndrome?
4. 44A+XO
1. 44A+XXY
2. 45A+XX
3. 44A+XY
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Q. A type of sugar produced by the
gene I on the surface of RBC
is
1. Agglutinogen
2. Agglutinin
3. Albumin
4. Globulin
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Q. In a medico-legal problem of a family having
four children with blood group A,B,O & AB
respectively. Father is accepting first three
children as his and rejecting last child by
suspecting his wife, applied for divorce. The
claim made by father is
4. Data insuficient
1. Not valid 2. Valid
3. Can’t claim unless he knows the
blood group of his wife
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Q. Which of the following
phenotypic character is
exhibited by Holandric genes ?
1. Red-green colour blindness
2. Profuse bleeding
3. Cat-cry syndrome
4. Hypertrichosis
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Q. Which of the following is
correct combination?
1. Sickle cell anaemia - bleeder’s
disease
2. Haemophilia - recessive X linked
3. Colour blindness - Y linked
4. Thalassaemia - dominant X linked
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1. AB 2. O
3. A 4. B
Q. Suppose if you marry a good
looking person with blood group
O, what is the possibility of
homozygous blood group, of
your child?
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1. Dominant
2. Hybrid
3. Heterozygous
4. Recessive
Q. An individual which is always
true breeding is
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Q. A wild type is
1. A phenotype most commonly
found in nature
2. The dominant allele
3. Your pet animal
4. Cultivated in garden
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Q. In a breeding experiment F2
generation has 200 offsprings,
50 of them are with genotype
TT. The genotype of parental
(P 1) generation must be
4. tt and tt
1. TT and tt 2. Tt and tt
3. Tt and Tt
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Q. The significance of test
cross is to test
4. Heterozygocity of F2 parent
1. Heterozygocity of F1 progeny
2. Heterozygocity of recessive parent
3. Homozygocity of recessive parent
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Q. Green blindness is
4. Tritanopia
1. Protonopia
2. Deuteronopia
3. Daltonism
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Q. Which of the following is
gene disorder?
4. Sickle cell anaemia
1. Klinefelter’s syndrome
2. Down’s syndrome
3. Turner’s syndrome
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Q. What is an offspring of two
homozygous parents differing
from one another by alleles
at only one gene locus called?
4. Back cross
1.Trihybrid
2. Dihybrid
3. Monohybrid
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Q. The genetic concept of
segregation and recombination
are most likely to be associated
with
4. Meiosis and amitosis
1. Meiosis and cleavage
2. Meiosis and mitosis
3. Meiosis and fertilization
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Q. Which of the following is not true?
4. Girls are haemophilic
1. Boys are haemophilic
2. Girls are carrier for haemophilia
3. Boys are carrier for haemophilia
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Q. Which Mendelian law is applied
when factor for each character
segregate and pass on to each
gamete uncontaminated?
4. Law of Dominance
1. Law of purity of gametes
2. Law of Independent assortment
3. Law of Unit characters
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Q. If a tall plant is crossed with a dwarf
one, about one half of the offspring
produced are tall and the other half
dwarf in F1 generation. The genotype
of parents is
4. tt x tt
1. Tt x tt 2. Tt x Tt
3. TT x tt
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Q. In a cross TT x tt , what
percentage of off spring will
have the same genotype as
their parents in F1 generation?
4. 100 %
1. 0 % 2. 25 %
3. 50 %
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Q. The genotype of blood group
AB is
4. Heterozygous and dominant
1. Homozygous and codominant
2. Heterozygous and codominant
3. Codominant only
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Q. What is the cause for a child
born with an extra chromosome
in each of its cells?
4. Multiple sex
1. Segregation
2. Non-disjunction
3. Crossing over
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Q. The gene for haemophilia is
located on X - chromosome.
Hence it is normally impossible
for a
4. Haemophilic father to pass gene to his son
1. Haemophilic father to pass the gene
to his daughter
2. Carrier mother to pass the gene to
her daughter
3. Carrier mother to pass the gene to her son
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• Unit of distance between genes
in a chromosome is
1. Micron
2. Mendel
3. Centimorgan
4. Exon
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Q. What is the probability of
daughter born to a haemophilic
mother and a colour blind
father?
4. She is carrier for both
1. She is colour blind
2. She is haemophilic
3. She is heamophilic and colourblind
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Q. If a man of blood group A+ in
heterozygous marries a woman
of blood gp B+ in heterozygous,
their children can be of the
blood group
4. A+ , B+ , A- , B-
1. A+ , B+ , AB+ , O+
2. A+ , B+ , AB+ , O+ A- , B- , AB- , O-
3. A- , B- , AB- , O-
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Q. If the father is haemophiliac
and mother is a carrier of the
gene for haemophilia. What are
the chance that their son will
inherit the disease?
4. 100 %
1. 0 % 2. 50 %
3. 75 %
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Q. Epicanthus condition is
found in
4. Criminal syndrome
1. Down’s syndrome
2. Klinefelter’s syndrome
3. Turner’s syndrome
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Q. The disease reported in queen
Victoria is
4. Hepatitis-B
1. Heamophilia-A
2. Christmas
3. Daltonism
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Q. Sickle-cell anaemia is due to
the mutated gene Hbs present
on the chromosome
4. 5
1. 11
2. 16
3. 21
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Q. Y-linked inheritance is from
4. Female to female
1. Female to male
2. Male to female
3. Father to son
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Q. Barr-body is
4. Y-chromosome in female
1.Highly heterochromatinised X-
chromosome in male
2. Highly heterochromatinised X-
chromosome in female
3. Barbels in cats
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Q. Linked genes separate due to
1. Crossing over
2. Mutation
3. Recombination
4. Feratilization
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Q. Children born to colour blind
woman and normal vision man are
4. Sons are colour blind and
daughters are carriers
1. All are colour blind
2. Daughters are colour blind and
sons are normal
3. Sons are colour blind and
daughters are normal
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Q. Criss-cross inheritance is
between
4. Father to mother
1. Male to male
2. Female to female
3. Opposite sex
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Q. The blood group AB was
reported by
4. Burnstein
1. Carl Landsteiner
2. Steiner and Weiner
3. de Castella and Steini
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Q. Which of the following are
phenocopies with respect to
length of pea plant?
4. Tt, Tt
1. TT, Tt, tt
2. TT, tt
3. TT,Tt
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Q. Holandric characters are
4. Icthyocis & Porcupine disorder
1. Albinism
2. Icthyocis
3. Porcupine disorder
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Q. Heamophilia was reported by
4. Elizabeth
1. Allec Jeffrey
2. John Cotto
3. Carl Correns
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Q. Hemizygous condition is
applicable to
4. XO
1. XX
2. XY
3. XXY
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Q. Skin color inheritance in man
is an example for
1. Sex linked
2. Pleiotropic
3. Polygenic
4. Multiple allele
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Q. The rarest blood group is
4. O
1. A
2. B
3. AB
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Q. The rediscoverers of
mendelian principles are
4. de Vries, Correns, Tschermak
1. de Vries
2. Correns and Mendel
3. Tschermak
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Q. Phenotypic ratio of dihybrid
test cross is
4. 1 : 2 : 2 : 4 : 1 : 2 : 1 : 2 : 1
1. 1 : 1
2. 1 : 1 : 1 : 1
3. 9 : 3 : 3 : 1
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Q. Which of the following is more
likely to be heterozygous?
4. Cross-pollinated crops
1. Pure lines
2. Self-pollinated crops
3. Autopolyploids
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Q. If the cell of an organism
heterozygous for alleles Xx, Yy
undergoes meiosis, then the
possible genotype of gametes will
be
4. XxYy
1. XY, xY, Xy, xy
2. XY, xy
3. Xx, Yy
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Q. If two heterozygous dihybrids
are crossed, the percentage
of recessive is
1. 25%
2. 06%
3. 75%
4. 50%
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Q. The significance in using a
Punnet square is to know
4. all genotypic & phenotypic ratios
1. gametic combinations
2. genotypic ratios
3. phenotypic ratios
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Q. Chromosome theory of heredity
was postulated by
1. Charles Darwin
2. Gregor Mendel
3. Sutton and Boveri
4. Morgan
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tHANK yOU