What is the outbreeding device, where the stamens and carpels mature at different times called?

Monoecy

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Self sterility

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Dichogamy

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Heterostyly

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Solution

The correct option is B Dichogamy
Dichogamy refers to the temporal separation of maturation of stamen and pistils of the flowers. Different maturation time of stamen and pistil helps to avoid self-fertilization.
Monoecy refers to the presence of unisexual flowers to prevent autogamy.
Self sterility refers to the inability of pollens of the flower to pollinate the stigma of the same flower or that of separate flower on the same plant to avoid autogamy.
Heterostyly refers to presence of stamen and style of different length in bisexual flowers to avoid autogamy.
The correct answer is C.

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Similar questions

Q. Assertion (A): In protandrous flowers like sunflowers, the stamens mature before the carpels
Reason (R): When stamens and carpels mature at different times, self pollination is not possible and cross pollination becomes inevitable

Q. The features where stamens and stigma mature at different times favouring cross pollination is known as?

Which of the following statement is false regarding the advantages of self-pollination?

1. In bisexual flowers where stamens and carpels mature at the same time
2. Parental characters are not preserved
3. There is no wastage of pollen grains
4. The flowers need not be large and showy

Q. Plant with both carpels and stamens is

Bisexual flowers have only carpels and Unisexual flowers have both stamens and carpels.

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