A. In roses,the endosperm is formed after fer | vedclass

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(A) $1$. In angiosperms (like roses),the endosperm is formed as a result of the fusion of one male gamete with two polar nuclei (or a secondary nucleu

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$A$ and $R$ are both true,and $R$ is the correct explanation of $A$.

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(A) $1$. In angiosperms (like roses),the endosperm is formed as a result of the fusion of one male gamete with two polar nuclei (or a secondary nucleus),a process known as triple fusion.$2$. Triple fusion is a part of the double fertilization process,which occurs only after the pollen tube enters the embryo sac.$3$. Therefore,the formation of the endosperm in angiosperms is a post-fertilization event.$4$. Both statements $A$ and $R$ are correct,and $R$ (the occurrence of double fertilization) is the reason why the endosperm (a product of triple fusion) is formed after fertilization.

Column-$I$	Column-$II$
$(a)$ Zygote	$(1)$ Seed
$(b)$ Ovule	$(2)$ Seed coat
$(c)$ Ovary	$(3)$ Embryo
$(d)$ Integument	$(4)$ Fruit

Column-$I$	Column-$II$
$i$. Coconut	$a$. Helobial
$ii$. Balsam	$b$. Perisperm
$iii$. Asphodelus	$c$. Nuclear
$iv$. Black pepper	$d$. Cellular

$A.$ In roses,the endosperm is formed after fertilization.
$R.$ Double fertilization is observed in angiosperms.

Similar Questions

Match the following columns:

Column-$I$ Column-$II$

$(a)$ Zygote $(1)$ Seed

$(b)$ Ovule $(2)$ Seed coat

$(c)$ Ovary $(3)$ Embryo

$(d)$ Integument $(4)$ Fruit

Which one of the following statements is wrong?

Which plant can propagate vegetatively at a phenomenal rate and spread all over the water body in a short period of time?

Flowering plants are more successful than other members of the plant world because

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$A.$ In roses,the endosperm is formed after fertilization.$R.$ Double fertilization is observed in angiosperms.