1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is correct?
A
Ontogeny repeats phylogeny.
B
There is no evidence of the existence of gills during embryogenesis of mammals.
C
Stem cells are specialized cells.
D
All plant and animal cells are totipotent.
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Adaptive radiation refers to:-
A
Adaptations due to Geographical isolation
B
Migration of members of a species to different geographical areas
C
Evolution of different species from a common ancestor
D
Power of adaptation in an individual to a variety of environments
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Two plants can be conclusively said to belong to the same species if they
A
have more than 90 percent similar genes
B
look similar and possess identical secondary metabolites
C
have same number of chromosomes
D
can reproduce freely with each other and form seeds.
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Which one of the following is surrounded by a callose wall?
A
Male gamete
B
Egg
C
Pollen grain
D
Microspore mother cell
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