4
MCQ (Single Correct Answer)
A plant shows thallus level; of organisation. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to
A
pteridophytes
B
gymnosperms
C
monocots
D
bryophytes
5
MCQ (Single Correct Answer)
A prothallus is
A
a structure in pteridophytes formed before the thallus develops
B
a sporophytic free living structure formed in pteridophytes
C
a gametophyte free living structure formed in pteridophytes
D
a primitive structure formed after fertilisation in pteridophytes
6
MCQ (Single Correct Answer)
Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
A
monocots
B
dicots
C
pteridophytes
D
gymnosperms
7
MCQ (Single Correct Answer)
The embryo sac of an angiosperm is made up of
A
8 cells
B
7 cells and 8 nuclei
C
8 nuclei
D
7 cells and 7 nuclei
8
MCQ (Single Correct Answer)
If the diploid number of a flowering plant is 36 . What would be the chromosome number in its endosperm?
A
36
B
18
C
54
D
72