Maharashtra Animal and Fishery Sciences University 2009 B.Ed. (Zoology) C.s.ezoology for preliminary - Question Paper

110. The toxic substance discharged by the blister beetles contains(a) Oxidesofnitrogen (b) Sulphurous compounds(c) Cantharidine (d) Cyanic acid

111. The machanismofsex determinationin male honeybee is(a) By the presenceofone X-chromosome and 2 sets ofautosomes autosomes(b) By the presenceofone Z-chromosome and 2 setsofautosomes(c) By the ratio of X-chromosomes to haploid set of chromosomes(d) By the asexual processofembryonic development 

114. The silk moth, Bombyx sp. overcomes the extremes of ambient temperatureby undergoing undergoing(a) Encystment (b) Hibernation(c) Diapause (d) Aestivation
 
115. In forensic study, DNA fingerprinting process is used to determine whetheror not an individual is the parentofa child by(a) VNTR loci analysis(b) RFLP analysis(c) Degenerate oligonucleotides assay (d) c-DNA analysis 

116. Chloragogen tissue obtained in earthworms surrounds the(a) Intestine (b) Gonad(c) Clitellum (d) Integument Directions: The subsequent 4
(4) items consistoftwo statements, 1 labelled as the the 'Assertion (A)'and the other as'Reason (R)'. You are to examine these 2 statements carefully'and choose the answers to these items using the code provided below: (a) Both A and R are individually actual and R is the accurate explanation of A (b) Both A and R are individually actual but R is not the accurate explanation of A (c) A is actual but R is false (d) A is false but R is true 

117. Assertion (A) :Mitochondrion contains 1 double stranded circular DNA.Reason (R) :DNA carries genes for all the proteins needed for its functioning, 

118. Assertion (A) :A nucleus taken from a somatic cell and implanted into an enucleated egg cellofa frog often provide rise to an adult individual. 
cause (R) :Differentiated donor nucleus could be totipotent.

119. Assertion (A) :Spontaneous mutation involves base pair substitutions during DNA replication.
cause (R) :It is a temperature sensitive mutation and modifications the base pair. 

120. Assertion (A) :Using recombinant DNA technology, desired genes can be implanted into a bacterium for amplification and expression. 
cause (R) :Any bacterium can carry expression vector.  

Earning:   Approval pending.