43,

45.

47.

48.

49.

30,

During replication in .Coli the unwinding of DNA is catalyzed by :

(A) DNA Helicase (B) SSDNA Binding protein
(0 DNA topaisomerase (D} DNA polymerase

47 xxy in man indicates :

(&) Down's syndrome () Khnfelter syndrome
(€} Turner syndrome (D) Cri-du-chat syndrome

Trichothiodystrophy is associated with :
(A) Structural gene mutation
(8) Defect in nuclsotide exeision repair
(09 Defect in DNA metabolism
(D) Defect in mismatch repair mechanism

Calcium plays an important role in cortical granule reaction. Upon fertilization the level of
00:
(ക) [ண (B) Decrease

(C) Remaing same (10 Decreases with increase in K*

is a maternally expressed polypeptide that may control the fate of EMS blastomere
in C.elegans :
(4) PAL-1 (B) PIE-1
ര SKN-1 ™ MOM-2

Identify the correct statement from the following :
(ക) Mutation of CSX gene vesults in heart attack
(B) Reiger syndrome is a mutation phenotype of the gene PiTx,
(€) Mutation of WTI gene is man results in congenital cataract
(D) Greig syndrome 18 a mutation phenotype of the gene SOX9

Which group of genes identified by Nusselein Volhard and Carroll is responsible for the final
tages of segmentation in Drosophila embryo?

(ക Morphogen gradient gene (B) Gap gene
{C) Pair rule genes (D) Segment polarity gene

Which of the following series of events represents the path of vertebrate development?

(A) Blastula, cleavage, neurulation, cell migration, gastrulation, organogenesis,
growth

(B) Blastula, cleavage, gastrulation, neurulation cell migration, organogenesis,
growth 3

(C) Cleavage, blastula, gastrulation, neurulation, cell migration, growth
(D) Cleavage, gastrulation, blastulation, neurulation, cell migration, growth

56/2014 8 A