30.Proteoglycans are made of proteins and
a.Glucose amine
b.sialic acid
c.mannosamine
d.mucopolysaccharides.

ans. d.mucopolysaccharides.
29.The highest level of packing of DNA with hisyones is observed during

a. prophase
b. metaphase.
c. anaphase
d. G1 phase

c. Metaphase

28.The centtromeres usually cocnsists of
a.Tandem repeats
b. highly repeated satelite DNA
c. long stretches of DNA
D. redundant regions

ans. b. highy repeated satellite DNA

27.Cyclic photophoshorylation is carried out by
a.P.S 1
B. P.S 2
c. Botha&b
d.ps 2 alone
Ans. a. P.S 1
26.Number of chromosomes in Drosophila is
a. 6
b. 12
c. 8
d.4
Ans.C.8
25. Homologous chrormosomes similar in both sexes are called
a. Heterosomes
b. androsomes.
c.Autosomes
d. None of the above
Ans.c. Autosomes
24.The principle of linkage was discovered by

a. Mendel
b. sutton
c. Morgan
d. Bateson and Punnet

Ans. d. Bateson &Punnet
23.The term Mutation was introduced by

a. Mendel
b. Lamarck
c. Hugo de vries
d. Darwin

Ans. c.Hugo de vries