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
When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed:-
A
Microevolution
B
Convergent evolution
C
Co-evolution
D
Divergent evolution
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Male gametes in angiosperms are formed by the division of
A
generative cell
B
vegetative cell
C
microspore mother cell
D
microspore.
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
EXAM MAP