Objectives of Chromosomal Aberration
Multiple Choice Questions (MCQs)
1-The random abnormal number of chromosomes in the
animals is called: •
(a) Poh, ploidy (b) Euploid (c) aneuploid) (d) None
- A neuploith is mostly caused by:
(a) nondisjunction(b) Crossing on er (c) renersion
- X0 is:
(a) Trisomic (h) Monosomic (c) Tertrasomics Nullisomics
- Mosaic trisomy is:
(a) Trisomic (h) Monosomic (c)Tertrasom s (U) Nullisomics
- A condition in which the organisms have more than two complete sets of chromosomes is called:
(a) Polyploidy (b) Euploidy (c) aneuploidy (d) None
- Triticale IF a:
(a) Polyploidy’ (h) Euploidy (c ) aneuplcady (d) None
- Which of the followings is hexaploid?
(a) Wheat (h) maize ( c ) cotton (d) Oat
. 8. Which of the followings is octaploid?
(a) Wheat (h) strawberry (c) cotton • (1) Oat
- The interchange of parts between non-homologous
chromosomes is called:
‘(it) Duplication (b) translocation(c) Inversion (d) Deletion
10-Frameshift mutation is caused due to?
(a) Duplication (6) translocation(c) Inversion (d) Deletion
11-Cri du chat is caused due to:
(a) Duplication (b) translocation(c) Inversion (d) Deletion
Answers:
1. (c) 2. (b) 3. (b) 4. (a) 5. (a) 6. (a) 7. (d) 8. (b)
9. (b) 10. (d) 11.
Fill in blanks
1. Any numerical or structural change in the usual chromosome complement of a cell or organism is called chromosome_________.
- The random abnormal number of chromosomes in the animals is
called as______
- Ancuploidy is mostly caused by______
- ________ are polyploids in with chromosomes derived from a
single species. - __________ is an example of an allopolyploid. It has six
chromosome sets. - Polyploidy can he induced in cell culture by some chemicals like
- The interchange of parts between non-homologous chromosomes is called chromosome____
Ans:1. aberration 2. aneuploidy 3. nondisjunction 4.Autopolyploid
5. Triticale 6. colchicine 7. translocation
Similar Articles:
- Subjective & Short Questions of Chromosomal Aberration
- CHANGE IN CHROMOSOMAL STRUCTURE AND NUMB
- CHROMOSOME ABERRATION
- Definition & key points of Chromosomal Aberration
- OBJECTIVES OF CHROMOSOME AND GENE LINKAGE