61.
Bicarpeliary gynaecium and oblique ovary occurs in
A
Banana
B
Mustard
C
Brinjal
D
Pisum
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Bicarpeliary gynaecium and oblique ovary occurs in
Banana
Mustard
Brinjal
Pisum
Arrangement of nuclei in normal dicot embryo sac is
2+3+3
3+2+3
2+4+2+
3+3+2
Anthesis is
reception of pollen by stigmas
formation of pollen
development of anther
opening of floral bud
Anther represents
Spermatogonia
Male gametophyte
Male sporophyll
Female gametophyte
Anemophily occurs in
Vallisnaria
Bottle brush
Coconut
Salvia
An advantage of cleistogamy is
Each visit of pollinator brings hundreds of pollen grains
Seed set is not dependent on pollinators
It leads to diversity
Seed dispersal is more efficient and widespread
A diploid female plant is crossed with tetraploid male. The ploidy of endosperm will be
Diploidy
Pentaploidy
Tetraploidy
Triploidy
The smallest gymnosperm is
Wolfia sp.
Sequoia sp.
Eucalyptus sp.
Zamia sp.
The tallest living tree in the world is
Wolffia sp.
Sequoia sp.
Zamia sp.
Eucalyptus sp.
The tallest living tree of a Angioperm is
Sequoia sp.
Wolffia sp.
Zamia sp.
Eucalyptus sp.
By how many criteria, living organisms have been classified into five kingdom
Two
Four
Three
Five
Holdfast, stipe and frond constitutes the plant body in case of
Chlorophyceae
Phaeophyceae
All of the above
Rhodophyceae
Plant of this group possess naked seed
Angiosperms
Bryophytes
Pteridophytes
Gymnosperms
A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle bcause the male gametes are motile. Identify the group to which it belongs to
Bryophytes
Gymnosperms
Pteridophytes
Monocots
Presence of rigid cell wall is characterized by kingdom
Monera
Animalia
Protista
Plantae
Cyanobacteria are classified under
Monera
Plantae
Algae
Protista
Fusion of two motile gametes which are dissimilar in size is termed as
Isogamy
Zoogamy
Oogamy
Anisogamy
In which plant, the gametophytic phase is main and sporophytic phase is subsidiary
Nephrolepis
Anthoceros
Equisetum
Selaginella
The study of algae is called
Lichenology
Taxonomy
Mycology
Algology
In lichens fungal component is known as
phycobiont
mycobiont
none of these
A & B