1
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to
A
Insect predators
B
Insect pests
C
Fungal diseases
D
Plant nematodes
2
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the wrong statement with regard to Restriction Enzymes
A
Sticky ends can be joined by using DNA ligases.
B
They cut the strand of DNAat palindromic sites.
C
Each restriction enzyme functions by inspecting the length of a DNA sequence.
D
They are useful in genetic engineering
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The specific palindromic sequence which is recognized by EcoRl is
A
5’ - GGATCC - 3’
3’ - CCTAGG - 5’
B
5’ - GAATTC - 3’
3’ - CTTAAG - 5
C
5’ - GGAACC - 3’
3’ - CCTTGG - 5’
D
5’ - CTTAAG - 3’
3’ - GAATTC - 5’
4
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The sequence that controls the copy number of the linked DNA in the vector, is termed
A
Recognition site
B
Ori site
C
Selectable marker
D
Palindromic sequence
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