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
NEET 2013
MCQ (Single Correct Answer)
+4
-1
According to Darwin, the organic evolution is due to -
A
Reduced feeding efficiency in one species due to the presence of interfering species
B
Competition within closely related species
C
Intraspecific competition
D
Interspecific competition
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The tendency of population to remain in genetic equilibrium may be disturbed by :
A
lack of random mating
B
random mating
C
lack of migration
D
lack of mutations
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12