Class 12BiologySexual Reproduction in Flowering PlantsMix Examples-Sexual Reproduction in Flowering Plants
EasyStudy the following statements.
$I$. Pollen grains of many species cause severe allergies and bronchial afflictions in some people, often leading to chronic respiratory disorders.
$II$. Pollen grains are rich in nutrients.
$III$. Carrot grass ($Parthenium$ $hysterophorus$) came into India as a contaminant with imported wheat.
$I$. Pollen grains of many species cause severe allergies and bronchial afflictions in some people, often leading to chronic respiratory disorders.
$II$. Pollen grains are rich in nutrients.
$III$. Carrot grass ($Parthenium$ $hysterophorus$) came into India as a contaminant with imported wheat.
- AStatements $I$ and $III$ are correct, but statement $II$ is incorrect.
- BAll statements are incorrect.
- CStatements $I$ and $II$ are correct, but statement $III$ is incorrect.
- DAll given statements are correct.
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Similar Questions
The odd one out is:
MediumAIPMT 1991
View SolutionDioecious plant $- P$
Monoecious plant $- Q$
Select the correct option for $P$ and $Q$.
$\quad\quad\quad P\quad\quad Q$
Monoecious plant $- Q$
Select the correct option for $P$ and $Q$.
$\quad\quad\quad P\quad\quad Q$
Medium
View SolutionMatch the following:
Column-$I$ Column-$II$ $(1)$ Germ pore $(a)$ Lack of sporopollenin $(2)$ Parthenium $(b)$ Malva $(3)$ Self incompatibility $(c)$ Palms $(d)$ Contaminant with imported wheat
| Column-$I$ | Column-$II$ |
|---|---|
| $(1)$ Germ pore | $(a)$ Lack of sporopollenin |
| $(2)$ Parthenium | $(b)$ Malva |
| $(3)$ Self incompatibility | $(c)$ Palms |
| $(d)$ Contaminant with imported wheat |
Medium
View SolutionMatch the following by using the codes provided:
$A$. Vernalization $1$. Camerarius $B$. Double fertilization $2$. Hofmeister $C$. Pollination $3$. Lysenko $D$. Alternation of Generations $4$. Nawaschin
| $A$. Vernalization | $1$. Camerarius |
| $B$. Double fertilization | $2$. Hofmeister |
| $C$. Pollination | $3$. Lysenko |
| $D$. Alternation of Generations | $4$. Nawaschin |
Easy
View SolutionWhat is the ploidy level of the cells in an angiosperm plant body?
Medium
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