Assertion (A): Apogamy is a type of vegetative propagation.

Reason (R): Haploid cells of gametophyte without gametic union forms haploid sporophyte.

Directions: Choose the correct option:

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Solution

Correct answer: (d) Assertion(A) is false and reason(R) is true.

Apogamy is the development of haploid sporophytes without gametes or fertilisation from haploid cells of the gametophyte.

Hence, the correct option is (d).

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Similar questions

A multicelluar, filamentous alga exhibits a type of a sexual life cycle in which the meiotic division occurs after the formation of zygote. The ad adult filament of this alga has
(a) Haploid vegetative cells and diploid gametangia
(b) Haploid vegetative cells and diploid gametangia
(c) Diploid vegetative cells and haploid gametangia
(d) Haploid vegetative cells and haploid gametangia

Q. The development of haploid cells of gametophyte into a haploid sporophyte is called:

Q. Assertion :Gametic meiosis occur in diplohaplontic life cycle. Reason: The diploid sporophyte forms gametes which undergo meiosis, thereby forming haploid gametes.

Assertion (A): Bryophytes are terrestrial plants.

Reason (R): Life cycle of bryophytes occurs in two phases gametophyte and sporophyte.

Directions: Choose the correct option:

Q. A: The haploid plant body (gametophyte) produces gametes by mitosis
R: Diploid sporophytic plant body produces spores by meiosis

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Gymnosperms

Standard IX Biology

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Assertion (A): Apogamy is a type of vegetative propagation.​ Reason (R): Haploid cells of gametophyte without gametic union forms haploid sporophyte.​ Directions: Choose the correct option:​

Correct answer: (d) Assertion(A) is false and reason(R) is true. ​ ​Apogamy is the development of haploid sporophytes without gametes or fertilisation from haploid cells of the gametophyte. ​ Hence, the correct option is (d).​

Assertion (A): Apogamy is a type of vegetative propagation.

Reason (R): Haploid cells of gametophyte without gametic union forms haploid sporophyte.

Directions: Choose the correct option:

Correct answer: (d) Assertion(A) is false and reason(R) is true.

Apogamy is the development of haploid sporophytes without gametes or fertilisation from haploid cells of the gametophyte.

Hence, the correct option is (d).