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Genetics- Part 4
See all quizzes of Genetics- Part 4 here:
1 How many cells will be produced if it divides mitotically 6 times
?
A. 32
B. 64
C. 128
D. 256
2 Two daughter cells produced at the end of meiotic I will have ?
A. Half amount of DNA & same number of chromosomes
B. Half amount of DNA & half number of chromosomes
C. Same amount of DNA & half number of chromosomes
D. Same amount of DNA & same number of chromosomes
79 DNA and RNA molecule differ in which of the following ?
A. Phosphate
B. Sugar
C. Purines
D. Kinds of bond
3 tRNA is found in ?
A. Mitochondria
B. Membranes
C. Cytoplasm
D. Nucleus
81 Width of a DNA molecule is ?
A. 20 Å
B. 200 Å
C. 3.4 Å
D. 34 Å
4 If on one helix of DNA, the base is Cytosine the other helix will
have ?
A. Uracil
B. Guanine
C. Thymine
D. Cytosine
5 In a RNA molecule, the base adenine compliments with ?
A. Uracil
B. Guanine
C. Thymine
D. Cytosine
6 Duchenne & Becker muscular dystrophy is an example of what
kind of inheritance ?
A. Autosomal Dominant
B. Autosomal Recessive
C. X-linked Dominant
D. X-linked Recessive
7 What proportion of genes is common between ‘First cousins’ ?
A. 1/2
B. 1/4
C. 1/8
D. 1/16
8 Assuming that hemolytic jaundice in man is due to a dominant
gene, but only 10% of people actually develop disease. If a
heterozygous man marries a homozygous normal female, what
proportion of the children would develop hemolytic disease ?
A. 1/2
B. 1/4
C. 1/10
D. 1/20
9 In a family has 4 children, 3 boys and 1 girl, what are the chances
that the next baby will be a girl ?
A. 0
B. 1/4
C. 1/2
D. 1
10 Trisomy 18 (Edward’s syndrome), is caused due to error in ?
A. Maternal non-disjunction, at first meiotic division
B. Maternal non-disjunction, at second meiotic division
C. Paternal non-disjunction, at first meiotic division
D. Post zygotic, non-disjunction
11 At which stage of Meiosis I, the chromosomes form a ‘Quadrivalent’
?
A. Telophase
B. Pachytene
C. Diplotene
D. Zygotene
12 Which amongst the following is the most common ‘Robertsonian
translocation’ reported in patients ?
A. rob(13q14q)
B. rob(14q21q)
C. rob(21q21q)
D. rob(15q16q)
13 Normally XX is for female and XY is for male, but in which of the
following XX is for male and XY is for female ?
A. Reptiles
B. Amphibians
C. Birds
D. None of the above
14 Genes controlling secondary sexual characters are located on X
chromosome. Male child normally gets these genes from ?
A. Only father
B. Only mother
C. Both the parents
D. Occurs due to mutation
15 Which of the following is not a microdeletion syndrome ?
A. Prader-Willi syndrome
B. Angelman syndrome
C. Charcot-Marie-Tooth syndrome type 1A
D. DiGeorge syndrome
16 Which of the following is not a microdeletion syndrome ?
A. Prader-Willi syndrome
B. Angelman syndrome
C. Beckwith-Wiedemann syndrome
D. DiGeorge syndrome
17 Amniocentesis is usually done at which week of gestation ?
Harrison’s 16th Ed. 379
A. 8
B. 12
C. 16
D. 20
18 Chorionic villus sampling (CVS) is usually done at which week of
gestation ?
A. 4 to 6
B. 6 to 9
C. 9 to 12
D. 12 to 16
19 Which of the following is not a ‘X-linked’ disorder ?
Harrison’s 16th Ed. 390
A. Hemophilia A
B. G6PD deficiency
C. Hereditary nonpolyposis colon cancer
D. Kallmann syndrome
20 Which of the following is not a ‘X-linked’ disorder ?
Harrison’s 16th Ed. 390
A. Adrenoleukodystrophy
B. Duchenne & Becker muscular dystrophy
C. Polycystic kidney disease
D. Kallmann syndrome
21 Which of the following is not an ‘autosomal recessive’ disorder ?
A. Wilson’s disease
B. 21-Hydroxylase deficiency
C. Hypertrophic cardiomyopathy
D. 1 Antitrypsin deficiency
22 Which of the following is not an ‘autosomal recessive’ disorder ?
A. Familial Mediterranean fever
B. 21-Hydroxylase deficiency
C. Wilson’s disease
D. Long QT syndrome
23 Which of the following is not an ‘autosomal dominant’ disorder ?
A. Malignant hyperthermia
B. Hemochromatosis
C. Familial Parkinson’s disease
D. Hyperkalemic periodic paralysis
24 Which of the following is not an ‘autosomal dominant’ disorder ?
A. Marfan syndrome
B. Familial breast and ovarian cancer
C. Kallmann syndrome
D. Hereditary nonpolyposis colon cancer
