Time Allowed: Three
Hours Maximum marks: 200
Candidates should attempt Questions 1 and 5 which are
compulsory, and any THREE of the remaining questions, selecting at least ONE
question from each Section.
Section A
1.
Write short notes on any four of the following
in about 150 words each:
(a)
Cell fractionation
(b)
MPF
(c)
Pseudoallelism
(d)
Nucleolus
(e)
Importance of apomixes in plant breeding
2.
(a) Enumerate various techniques used for gene
mapping.
(b) ‘Recombination and independent
assortment are dependent on the positions that the genes occupy.’ Justify this
statement.
3.
(a) What are transgenic and how do they differ
from recombinants?
(b) What
is BT cotton?
(c) Discuss the pros and cons of the use of
transgenic crops.
4.
(a) What was the impact of the discovery of sex
chromosomes on genetics?
(b) What is the balance concept of sex
determination and how was the established?
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