NEET Biology MCQ - Genetic Basis Of Inheritance Mcq - Quiz-9 - MCQGeeks.com

Q.1

Holandric gene/direct transmission of traits from father to son occurs through ... ... [ MPPMT 2000 ]

0%
a) Autosomes
0%
b) X- chromosomes
0%
c) Y-chromosome
0%
d) None of the above

Q.2

A super male XYY is characterized by .... ...

0%
a) under production of sex hormones
0%
b) Overproduction of sex hormones
0%
c) Reduced intelligence but aggressive nature
0%
d) Both B and C

Q.3

Find the correct combination. Linkage groups Have genes which are linked in single chromosomes Show independent assortment. Do not show independant assortment In prokaryotes more than one ... .... [ BHU 2008 ]

0%
a) 1, 2, 3 correct
0%
b) 1, 2 correct
0%
c) 2, 4 correct
0%
d) 1, 3 correct

Q.4

Crossing over occurs in . ....

0%
a) Four strand stage
0%
b) Three strand stage
0%
c) Two strand stage
0%
d) Single strand stage

Q.5

A strong mutagen is ... .. [ JKMCEE 1994 ]

0%
a) Cold
0%
b) Heat
0%
c) Water
0%
d) X-ray

Q.6

Genes that change their location on chromosome are .... ... [ MPPMT 2004 ]

0%
a) Split genes
0%
b) Duplicate genes
0%
c) Jumping genes
0%
d) Pleiotropic genes

Q.7

turner's Syndrome where individuals are phenotypic ally female but have rudimentary sex organs and mammary glands is due to absence of .... ... [ MPPMT 2002 ]

0%
a) Both X-chromosomes
0%
b) Y-chromosomes
0%
c) One X chromosome/ 44+XO
0%
d) X-Y-chromosomes

Q.8

Colchicine brings about ... ... [ BHU 2001]

0%
a) Polyploidy
0%
b) Cell division
0%
c) Cell elongation
0%
d) Cell differentiation

Q.9

Both husband and wife have normal vision though their father were colour blind. The probability of their daughter becoming colour blind is ... ... [ CBSE 1990 ]

0%
a) 0%
0%
b) 25%
0%
c) 50%
0%
d) 75%

Q.10

Formation of multivalent in meiosis is due to .... ... [ CBSE 1998 ]

0%
a) Deletion
0%
b) Inversion
0%
c) Monosomy
0%
d) Reciprocal translocation

Q.11

In Drosophila female has a pair of chromosomes .... ... [ MPPMT 2011 ]

0%
a) ZZ
0%
b) XX
0%
c) YY
0%
d) ZW

Q.12

Diploid cells have ... ... [ DPMT 2009 ]

0%
a) One set of chromosomes
0%
b) Two sets of chromosomes
0%
c) Two pairs of homologous chromosomes
0%
d) Two chromosomes

Q.13

Genes located on Y-chromosome are .... ... [ AIIMS 1997 ]

0%
a) Mutant genes
0%
b) Sex-linked genes
0%
c) Autosomal genes
0%
d) Holandric genes

Q.14

Identify the wrong statement ... ... [ kerala 210 ]

0%
a) Human males have one sex chromosome much shorter than others
0%
b) In domesticated Fowl, sex of progeny depends upon type of sperm that fertilizes the egg.
0%
c) In Male Grasshopper, 50% of sperms have no sex chromosome
0%
d) Female birds produce two types of gametes based on sex chromosomes

Q.15

Turner's syndrome is represented by ... ... [ BHU 2003 ]

0%
a) XYY
0%
b) XO
0%
c) XXY
0%
d) XXX

Q.16

Haemophilia is .... .. [ JKCMEE 2002 ]

0%
a) Autosomal disease
0%
b) Bacterial disease
0%
c) Viral disease
0%
d) Sex linked disease

Q.17

Muller was awarded Nobel prize in 1946 for his work on ... .. [ CBSE 1996 ]

0%
a) Protein synthesis
0%
b) Chemistry of nucleic acids
0%
c) Cancer
0%
d) X-ray induced mutations

Q.18

Monosomic trisomy is .... ... [ kerala 2004 ]

0%
a) 2N-2+1
0%
b) 2N-1-1
0%
c) 2N-1
0%
d) 2N+1+1

Q.19

Mutation is change that is ... .. [ BHU 1991 ]

0%
a) Never inherited
0%
b) Inherited only in F2 generation
0%
c) Inherited
0%
d) Responsible for plant growth

Q.20

In Morgan's experiments on linkage, the percentage of white eyed miniature winged recombinants in F2 generation is ... ... [ kerala 2009 ]

0%
a) 1.3
0%
b) 62.8
0%
c) 37.2
0%
d) 73.2

Q.21

Three gene a, b, c show crossing over 20% between a and b, 28% between b and c and 8% between a and c. Sequence of gene will be ... ... [ CBSE 2002 ]

0%
a) b a c
0%
b) a b c
0%
c) a c b
0%
d) none of the above

Q.22

Wilson disease is associated with abnormal metabolism of ... .. [ Pb PMT 2005 ]

0%
a) Iron
0%
b) Potassium
0%
c) Copper
0%
d) Iodine

Q.23

Mutation is .... ... [ BHU 1998 ]

0%
a) Change in gene frequency
0%
b) Genetic drift
0%
c) Change in base pairs in DNA molecule
0%
d) Environmental mechanism of evolution

Q.24

Sickle cells anaemia is ... ... [ DPMT 2009 ]

0%
a) Autosomal dominant inheritance.
0%
b) X-linked recessive inheritance
0%
c) Autosomal recessive inheritance
0%
d) X-linked dominant inheritance

Q.25

Barr body is observed in ... .. [ Kerala 2005 ]

0%
a) Basophils of male
0%
b) Neutrophils of female
0%
c) Basophils of female
0%
d) Eosinophils

Q.26

Barr body represents ... ... [ JIPMER 1997 ]

0%
a) Heterochromatin in male and female cells
0%
b) All heterochromatin in female cells
0%
c) One of two X-chromosomes in somatic cells of female
0%
d) Y-chromosomes in somatic cells

Q.27

Huntingston's chorea is .... .. [ KCET 1995 ]

0%
a) Common in Korea
0%
b) Nervous degeneration causing involuntary shaking of legs, arms, head
0%
c) Disease of kidney
0%
d) Related to diabetes

Q.28

Due to non disjunction of chromosome during spermatogenesis some sperms carry both sex chromosomes ( 22A + XY) while others do not carry any sex chromosome ( 22A + O). If these sperms fertilize normal eggs (22A + X), what type of genetic disorders appear among the offspring. ..... [ KCET 2010]

0%
a) Turner's syndrome and Klinefelter's syndrome
0%
b) Down's syndrome and Klinefelter's syndrome
0%
c) Down's syndrome and Turner's syndrome
0%
d) Down's syndrome and Cri-du-chat syndrome

Q.29

Mongolism is ... ... [ MPPMT 2004 ]

0%
a) Turner's syndrome
0%
b) Klinefelter's syndrome
0%
c) Down's syndrome
0%
d) Hypothalamic syndrome

Q.30

Doubling of chromosomes is .... ... [ Odisha 2012 ]

0%
a) Polyteny
0%
b) Transcription
0%
c) Duplication
0%
d) Translation

Q.31

Plant in which chromosomal basis of sex determination was discover first is ... .. [ AIIMS 1996 ]

0%
a) Rumex
0%
b) Melandrium
0%
c) Coccinia
0%
d) Sphaerocarpus

Q.32

Point mutation is ... ... [ CBSE 2009 ]

0%
a) Loss of gene
0%
b) Change in a base of gene
0%
c) Addition of gene
0%
d) Deletion of a segment of gene

Q.33

Drosophila melanogaster possesses ... ... [ MPPMT 1997 ]

0%
a) 3 pairs autosomes + 1 pair sex chromosomes
0%
b) 2 pairs autosomes + 2 pair sex chromosomes
0%
c) 1 pairs autosomes + 3 pair sex chromosomes
0%
d) 2 pairs autosomes + 1 pair sex chromosomes

Q.34

Sickle cells anaemia is due to mutation of .... ...

0%
a) CTC to CAC
0%
b) CTG to CAG
0%
c) CAG to CTC
0%
d) CGC to CAC

Q.35

Wheat plant is 6n =What will be the number of chromosomes in its monosomic haploid and monoploid? .... ... [DPMT 1996]

0%
a) 43, 21 and 7
0%
b) 41, 21 and 7
0%
c) 15, 7 and 7
0%
d) 13, 7 and 7

Q.36

Genes exclusively present on Y-chromosome are called ... .. [ kerala 2000 ]

0%
a) Sex-linked
0%
b) Holandric
0%
c) Hologynic
0%
d) Histone

Q.37

Aneuploidy is zygotic chromosome number ... ... [ AMU 1992 ]

0%
a) thrice of gametic number
0%
b) twice of gametic number
0%
c) quadruple of gametic number
0%
d) abnormal

Q.38

Cytoplasmic inheritance is due to .... ...

0%
a) Plastids
0%
b) Mitochondria
0%
c) Cytoplasmic particles
0%
d) All the above

Q.39

Diploid chromosome number in humans is ... ... [ MPPMT 1994 ]

0%
a) 46
0%
b) 44
0%
c) 48
0%
d) 42

Q.40

A pleiotropic gene : [ ReAIPMT 2015]

0%
a) controls multiple traits in an individual
0%
b) is expressed only in primitive plants
0%
c) is a gene evolved during Pliocene
0%
d) control of trait only in combination with another gene

Q.41

A ten year patient is found to have slanting eyes with epicanthic fold, hypertelorism, dysplastic ears, mongoloid face and protruding tongue. the patient is suffering from ....

0%
a) Down's syndrome
0%
b) Klinefelter's syndrome
0%
c) Turner's syndrome
0%
d) Cri-due-chat syndrome

Q.42

Phenylketonuria is autosomal recessive disorder of chromosome .... ... [ AMU 2009 ]

0%
a) 11
0%
b) 12
0%
c) 16
0%
d) 17

Q.43

Match the columns

Column I Column II

(a) Down's Syndrome (p) An additional sex chromosome

(b) Cri-du-chat Syndrome (q) Loss of a part of chromosomes 5

(c) Klinefelter's Syndrome (r) Absence of sex chromosome

(e) Turner's Syndrome (s) Presence of an extra chromosome

- - (t) Presence of two extra chromosomes

0%
a) a - s; b - q ; c - p; d - r
0%
b) a - t; b - s ; c - p; d - q
0%
c) a - s; b - p ; c - q; d - r
0%
d) a - s; b - q ; c - r; d - p

Q.44

A disease which is inherited as an autosomal dominant condition .... ...

0%
a) Haemophilia
0%
b) Huntington's chorea
0%
c) Colour blindness
0%
d) Cri-du-chat

Q.45

An abnormality not due to recessive gene is ... ... [ AMU 2011]

0%
a) Phenylketonuria
0%
b) Alkaptonuria
0%
c) Polydactyly
0%
d) Tay-Sach's syndrom

Q.46

Number of chromosomes can increase or decrease due to ... ... [AFMC 1996]

0%
a) Mutation
0%
b) Genetic repetition
0%
c) Non disjunction
0%
d) All the above

Q.47

Total number of base pairs found in human genome is .... ... [ AIIMS 2004 ]

0%
a) 3.5 million
0%
b) 35000
0%
c) 35 billion
0%
d) 3.1 billion

Q.48

A colour blind mother and normal father would have ... .. [ CBSE 1992]

0%
a) Colour blind son and normal/ carrier daughters
0%
b) Colour blind sons and daughters
0%
c) All colour blind
0%
d) All normal

Q.49

Methylation of DNA commonly occurs in the sequence .... .... [ Odisha 2006 ]

0%
a) CmG
0%
b) CmA
0%
c) CmT
0%
d) CmC

Q.50

Which is not mutagen? ... ... [ MPPMT 1995 ]

0%
a) Acetic acid
0%
b) Gamma rays
0%
c) Nitrous acid
0%
d) Hydroxylamine

0 h : 0 m : 1 s