MCQ
The transformation experiments on Pneumococcus showed that
- A$DNA$ can duplicate itself
- B$RNA$ is the genetic material
- ✓$DNA$ is the genetic material
- DNone of these
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$(1)$ The trophic levels in $GFC$ are unlimited
$(2)$ Organisms at each trophic level depend on those at the higher trophic level for their energy demands.
$(3)$ Plants capture only $2 -10$ percent of $PAR$.
$(4)$ All organisms are dependent for their food on producers, either directly or indirectly.
$(i)$ Reproduction in fungi can take place by vegetative means - fragmentation and budding.
$(ii)$ Fusion of two nuclei is called plasmogamy.
$(iii)$ Fusion of protoplasms between two motile or nonmotile gametes is called karyogamy.
$(iv)$ Meiosis in zygote results in diploid spores.