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1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Variations caused by mutation, as proposed by Hugo de Vries, are :
A
small and directional
B
small and directionless
C
random and directional
D
random and directionless
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Match the hominids with their correct brain size :
(a) Homo habilis (i) 900 cc
(b) Homo neanderthalensis (ii) 1350 cc
(c) Homo erectus (iii) 650-800 cc
(d) Homo sapiens (iv) 1400 cc

Select the correct option.
A
(a) (b) (c) (d)
(iii) (iv) (i) (ii)
B
(a) (b) (c) (d)
(iv) (iii) (i) (ii)
C
(a) (b) (c) (d)
(iii) (i) (iv) (ii)
D
(a) (b) (c) (d)
(iii) (ii) (i) (iv)
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5kg die. Which type of selection process is taking place?
A
Disruptive Selection
B
Cyclical Selection
C
Directional Selection
D
Stabilizing Selection
4
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Among the following sets of examples for divergent evolution, select the incorrect option.
A
Forelimbs of man, bat and cheetah
B
Heart of bat, man and cheetah
C
Brain of bat, man and cheetah
D
Eye of octopus, bat and man
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