Q.1
In aneuploidy the entire set of chromosome is not involved in duplication of deletion.
  • a) True
  • b) False
Q.2
If an organism haschromosomes, the number of chromosome generated by nullisomy will be_____________________
  • a) 15
  • b) 7
  • c) 13
  • d) 12
Q.3
Turner’s syndrome is a result of _________________
  • a) Nullisomy
  • b) Monosomy
  • c) Trisomy
  • d) Polysomy
Q.4
Aneuploidy is usually deleterious as _________________
  • a) Chromosomal pairing is hampered
  • b) Gene balance is disrupted
  • c) Size of individual may vary
  • d) Chromosomal disintegration is increased
Q.5
Which of the following is an example of trisomy ________________
  • a) Endosperm
  • b) Klinefelter
  • c) Turner
  • d) Xeroderma
Q.6
________________ aneuploidy is better tolerated.
  • a) Nullisomic
  • b) Autosomal
  • c) Sex chromosomal
  • d) Chromosome 13
Q.7
Patau syndrome is a result of which of the following?
  • a) Non-disjunction of sex chromosome in female
  • b) Non- disjunction of sex chromosome in male
  • c) Non-disjunction of chromosome 21
  • d) Non-disjunction of chromosome 13
Q.8
The probability of aneuploidy in offspring increases with age as _________________
  • a) Chromosomes tend to lose information with age
  • b) Pairings at dichtyotene stages are gradually lost
  • c) Ability of fertilization with age is gradually lost
  • d) Chromosomal aberration with age
Q.9
A non-disjunction in the 1st phase of meiosis will lead to ______________
  • a) Monosomy
  • b) Nullysomy
  • c) Disomy
  • d) Trtrasomy
Q.10
At what maternal age the probability of having a child with Down’s syndrome is increased drastically?
  • a) 25
  • b) 30
  • c) 35
  • d) 45
Q.11
Chromosome ____________ trisomy leads to Edward’s syndrome.
  • a) 12
  • b) 13
  • c) 18
  • d) 21
Q.12
Sexual mosaics lead to formation of _______________
  • a) Female from male egg
  • b) Gynandromorph
  • c) Klinefelter
  • d) Trisomy
Q.13
Extreme klinefelter is an example of _____________________
  • a) Monosomy
  • b) Trisomy
  • c) Disomy
  • d) Tetrasomy
Q.14
Choose the wrong statement.
  • a) Maternal trisomy in a gamete is more severe in paternal gamete trisomy
  • b) Tetrasomy and nullisomy are due to change in chromosome number by 2
  • c) Disomy has severe effects
  • d) Edward’s syndrome is due to trisomy of chromosome 18
0 h : 0 m : 1 s