1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Which enzyme will be produced in a cell in which there is a non-sense mutation in the lac Y gene ?
A
Transacetylase
B
Lactose permease and transacetylase
C
Lactose permease
D
$$\beta $$-galactosidase
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is not true of two genes that show 50% recombination frequency ?
A
The genes are tightly linked
B
The genes show independent assortment
C
If the genes are present on the same chromosome, they undergo more than one crossovers in every meiosis.
D
The genes may be on different chromosomes
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Removal of introns and joining of exons in a defined order during transcription is called
A
Looping
B
Inducing
C
Slicing
D
Splicing
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following is not a part of a transcription unit in DNA ?
A
The structural gene
B
the inducer
C
A terminator
D
A promoter
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