MCQ
A centrosome is
- AA cytoplasmic organelle present in plant cells
- ✓A cytoplasmic organelle present in animal cells
- CA cytoplasmic organelle present in plant and animal cells
- DA nuclear structure present in animal cells
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$(1)$ In liverworts, mosses and ferns gametophytes are free-living
$(2)$ Gymnosperms and some ferns are heterosporous
$(3)$ Sexual reproduction in Fucus, Volvoxand albugo is oogamous
$(4)$ The sporophyte in liveworts is more elaborate than that in mosses
$(5)$ Both Pinus and Marchantia aredioecious
How many of the above statements are correct?
$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Plant\,\,growth\,\,promoters & 1.\,\,Auxin \\ \hline B.\,\,Plant\,\,growth\,\,inhibitor & 2.\,\,Gibberellin \\ \hline & 3.\,\,Abscisic\,\,acid \\ \hline & 4.\,\,Cytokinin \\ \hline \end{array}$
$A - B$