- ✓Puccinia graminis
- BUstilago
- CPythium
- DNone of these
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Assertion $A$: A flower is defined as modified shoot wherein the shoot apical meristem changes to floral meristem.
Reason $R$: Internode of the shoot gets condensed to produce different floral appendages laterally at successive node instead of leaves.
In the light of the above statements, choose the correct answer from the options given below :
$(1)$ $C_4$ plants do not tolerate higher temperature.
$(2)$ $C_4$ plants show a response to high light intensities
$(3)$ $C_4$ plants lack a process called photorepiration.
$(4)$ Productivity of $C_4$ plants is less than $C_3$ plants.
$(5)$ $C_4$ acid $OAA$ is formed in the mesophyll in cells.
Statement $I:$ $RNA$ mutates at a faster rate.
Statement $II$: Viruses having RNA genome and shorter life span mutate and evolve faster.
In the light of the above statements, choose the correct answer from the options given below:
