In prokaryotes mostly:
A) Negative mechanism of gene regulation is found
B) Positive mechanism of gene regulation is found
C) Both A) and B)
D) None of the above
The first transgenic plant against virus disease is produced in:
A) Tomato
B) Soybean
C) Brinjal
D) Tobacco
Dimethyl Sulphoxide (DMSO) is a:
A) Anti-transpirant
B) Cryoprotectant
C) Fusogen
D) All of the above
Gene for gene concept was given by:
A) Flor
B) K.C. Mehta
C) Vanderplank
D) None of the above
Tift 23A and Tift 23D2A are male sterile lines of:
A) Sorghum
B) Pearlmillet
C) Maize
D) Cotton
Oligogenic resistance is synonymous to:
A) Horizontal resistance
B) Vertical resistance
C) Both A) and B)
D) None of the above
Monogenic resistance is ……… durable than polygenic resistance:
A) More
B) Less
C) Highly
D) All of the above
Frame shift mutation is produced due to:
A) Base substitution
B) Base addition
C) Base deletion
D) Both B) and C)
Which of the following is a start codon?
A) UAA
B) UAG
C) AUG
D) UGA
Prabhavati is a mutant variety of:
A) Wheat
B) Rice
C) Maize
D) Sorghum
H4 first cotton hybrid is a:
A) Inter varietal hybrid
B) Inter specific hybrid
C) Intergeneric hybrid
D) None of the above
DSH-129 is a hybrid variety of:
A) Sunflower
B) Safflower
C) Sorghum
D) Sugarcane
Dominance hypothesis of heterosis was proposed by:
A) Davenport
B) Bruce, Keeble and Pellew
C) Shull
D) All of the above
RNA as the genetic material was first reported by:
A) Griffing
B) Avery Macleod and McCarty
C) Frankel Conrat and Singer
D) None of the above
Which form of DNA is common in vivo?
A) A-DNA
B) B-DNA
C) C-DNA
D) Z-DNA
Dehydrated DNA occurs in the:
A) A form
B) B form
C) Z form
D) None of the above
The size of pBR 322 is:
A) 4363bp
B) 5000bp
C) 3580bp
D) 2700bp
DNA replication always proceeds in:
A) 5’-3’ direction
B) 3’-5’ direction
C) Both A) and B)
D) None of the above
DNA replication is always:
A) Unidirectional
B) Bidirectional
C) Both A) and B)
D) None of the above
Rolling circle model of DNA replication occurs in:
A) Phi-phage174
B) Mammals
C) Adenovirus
D) All of the above
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