Double Fertilisation
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341575 The angiospermic endosperm except in special cases is a triploid (3n) tissue as it is a product of triple fusion involving double fertilization. It is thus, distinct from the endosperm of gymnosperms and heterosporous pteridophytes, where the endosperm is

1 Diploid before fertilization
2 Simple haploid (n) tissue of the gametophyte not involving any complication like fusion or fertilization
3 Polyploidy formed after simple fertilization
4 Haploid formed after fertilization
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341576 Triple fusion is characteristic of

1 Bryophytes
2 Thallophytes
3 Angiosperms
4 Pteridophytes
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341577 After entering one of the synergids, the pollen tube releases the two male gametes into the

1 Cytoplasm of the egg cell
2 Cytoplasm of the synergid
3 Cytoplasm of the antipodals
4 None of them
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341578 Which of the following is correct?

1 Double fertilization - characteristic of angiosperms
2 Double fertilization or triple fusion was discovered by Nawaschin
3 Pollen tube shows tip growth and chemotropic movement
4 All
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341575 The angiospermic endosperm except in special cases is a triploid (3n) tissue as it is a product of triple fusion involving double fertilization. It is thus, distinct from the endosperm of gymnosperms and heterosporous pteridophytes, where the endosperm is

1 Diploid before fertilization
2 Simple haploid (n) tissue of the gametophyte not involving any complication like fusion or fertilization
3 Polyploidy formed after simple fertilization
4 Haploid formed after fertilization
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341576 Triple fusion is characteristic of

1 Bryophytes
2 Thallophytes
3 Angiosperms
4 Pteridophytes
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341577 After entering one of the synergids, the pollen tube releases the two male gametes into the

1 Cytoplasm of the egg cell
2 Cytoplasm of the synergid
3 Cytoplasm of the antipodals
4 None of them
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341578 Which of the following is correct?

1 Double fertilization - characteristic of angiosperms
2 Double fertilization or triple fusion was discovered by Nawaschin
3 Pollen tube shows tip growth and chemotropic movement
4 All
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341575 The angiospermic endosperm except in special cases is a triploid (3n) tissue as it is a product of triple fusion involving double fertilization. It is thus, distinct from the endosperm of gymnosperms and heterosporous pteridophytes, where the endosperm is

1 Diploid before fertilization
2 Simple haploid (n) tissue of the gametophyte not involving any complication like fusion or fertilization
3 Polyploidy formed after simple fertilization
4 Haploid formed after fertilization
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341576 Triple fusion is characteristic of

1 Bryophytes
2 Thallophytes
3 Angiosperms
4 Pteridophytes
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341577 After entering one of the synergids, the pollen tube releases the two male gametes into the

1 Cytoplasm of the egg cell
2 Cytoplasm of the synergid
3 Cytoplasm of the antipodals
4 None of them
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341578 Which of the following is correct?

1 Double fertilization - characteristic of angiosperms
2 Double fertilization or triple fusion was discovered by Nawaschin
3 Pollen tube shows tip growth and chemotropic movement
4 All
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341575 The angiospermic endosperm except in special cases is a triploid (3n) tissue as it is a product of triple fusion involving double fertilization. It is thus, distinct from the endosperm of gymnosperms and heterosporous pteridophytes, where the endosperm is

1 Diploid before fertilization
2 Simple haploid (n) tissue of the gametophyte not involving any complication like fusion or fertilization
3 Polyploidy formed after simple fertilization
4 Haploid formed after fertilization
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341576 Triple fusion is characteristic of

1 Bryophytes
2 Thallophytes
3 Angiosperms
4 Pteridophytes
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341577 After entering one of the synergids, the pollen tube releases the two male gametes into the

1 Cytoplasm of the egg cell
2 Cytoplasm of the synergid
3 Cytoplasm of the antipodals
4 None of them
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341578 Which of the following is correct?

1 Double fertilization - characteristic of angiosperms
2 Double fertilization or triple fusion was discovered by Nawaschin
3 Pollen tube shows tip growth and chemotropic movement
4 All