267388
Which of the following statements with respect to gymnosperms and angiosperms is/are correct?
(i) The process of double fertilization is present in gymnosperms. NCERT-38, 39, 40 / N-32, 33, 34
(ii) Angiosperms range in size from microscopic Wolffia to tall trees of Sequoia.
(iii) In gymnosperms, the seeds are not covered.
(iv) In gymnosperms, the male and female gametophytes have an independent free living existence.
Of the above statements]#
267389
Choose the correct statement about liverworts.
(i) In liverworts, the antheridium and archegonium produce the antherozoid and the egg which fuse during sexual reproduction.
(ii) Both male and female sex organs may be present on same thalli or different thalli.
(iii) A sporophyte is formed from the zygote which is differentiated into the foot, seta and capsule.
(iv) Meiosis occurs in some cells of the capsule giving rise to haploid spores.
(v) The spores germinate to form free - living sporophytes.
267390
The correct statements about bryophytes are:
(i) Sex organ in bryophytes are multicellular
(ii) The sperms are released into water which swim through water to fuse with the egg to produce the zygote outside the body.
(iii) Immediate reduction division occurs in zygotes.
(iv) A multicellular body called a sporophyte is then produced.
(v) The sporophyte is not -free living but attached to photosynthetic gametophyte.
267391
In mosses, the second gametophytic stage is leafy stage. Consider and choose the correct statements about leafy stage.
(i) They consist of upright, slender axes bearing spirally arranged leaves.
(ii) This leafy stage bears the sex organs.
(iii) They are attached to the soil through multicellular rhizoids.
(iv) Leafy stage is produced from the secondary protonema as a lateral bud.
267388
Which of the following statements with respect to gymnosperms and angiosperms is/are correct?
(i) The process of double fertilization is present in gymnosperms. NCERT-38, 39, 40 / N-32, 33, 34
(ii) Angiosperms range in size from microscopic Wolffia to tall trees of Sequoia.
(iii) In gymnosperms, the seeds are not covered.
(iv) In gymnosperms, the male and female gametophytes have an independent free living existence.
Of the above statements]#
267389
Choose the correct statement about liverworts.
(i) In liverworts, the antheridium and archegonium produce the antherozoid and the egg which fuse during sexual reproduction.
(ii) Both male and female sex organs may be present on same thalli or different thalli.
(iii) A sporophyte is formed from the zygote which is differentiated into the foot, seta and capsule.
(iv) Meiosis occurs in some cells of the capsule giving rise to haploid spores.
(v) The spores germinate to form free - living sporophytes.
267390
The correct statements about bryophytes are:
(i) Sex organ in bryophytes are multicellular
(ii) The sperms are released into water which swim through water to fuse with the egg to produce the zygote outside the body.
(iii) Immediate reduction division occurs in zygotes.
(iv) A multicellular body called a sporophyte is then produced.
(v) The sporophyte is not -free living but attached to photosynthetic gametophyte.
267391
In mosses, the second gametophytic stage is leafy stage. Consider and choose the correct statements about leafy stage.
(i) They consist of upright, slender axes bearing spirally arranged leaves.
(ii) This leafy stage bears the sex organs.
(iii) They are attached to the soil through multicellular rhizoids.
(iv) Leafy stage is produced from the secondary protonema as a lateral bud.
267388
Which of the following statements with respect to gymnosperms and angiosperms is/are correct?
(i) The process of double fertilization is present in gymnosperms. NCERT-38, 39, 40 / N-32, 33, 34
(ii) Angiosperms range in size from microscopic Wolffia to tall trees of Sequoia.
(iii) In gymnosperms, the seeds are not covered.
(iv) In gymnosperms, the male and female gametophytes have an independent free living existence.
Of the above statements]#
267389
Choose the correct statement about liverworts.
(i) In liverworts, the antheridium and archegonium produce the antherozoid and the egg which fuse during sexual reproduction.
(ii) Both male and female sex organs may be present on same thalli or different thalli.
(iii) A sporophyte is formed from the zygote which is differentiated into the foot, seta and capsule.
(iv) Meiosis occurs in some cells of the capsule giving rise to haploid spores.
(v) The spores germinate to form free - living sporophytes.
267390
The correct statements about bryophytes are:
(i) Sex organ in bryophytes are multicellular
(ii) The sperms are released into water which swim through water to fuse with the egg to produce the zygote outside the body.
(iii) Immediate reduction division occurs in zygotes.
(iv) A multicellular body called a sporophyte is then produced.
(v) The sporophyte is not -free living but attached to photosynthetic gametophyte.
267391
In mosses, the second gametophytic stage is leafy stage. Consider and choose the correct statements about leafy stage.
(i) They consist of upright, slender axes bearing spirally arranged leaves.
(ii) This leafy stage bears the sex organs.
(iii) They are attached to the soil through multicellular rhizoids.
(iv) Leafy stage is produced from the secondary protonema as a lateral bud.
267388
Which of the following statements with respect to gymnosperms and angiosperms is/are correct?
(i) The process of double fertilization is present in gymnosperms. NCERT-38, 39, 40 / N-32, 33, 34
(ii) Angiosperms range in size from microscopic Wolffia to tall trees of Sequoia.
(iii) In gymnosperms, the seeds are not covered.
(iv) In gymnosperms, the male and female gametophytes have an independent free living existence.
Of the above statements]#
267389
Choose the correct statement about liverworts.
(i) In liverworts, the antheridium and archegonium produce the antherozoid and the egg which fuse during sexual reproduction.
(ii) Both male and female sex organs may be present on same thalli or different thalli.
(iii) A sporophyte is formed from the zygote which is differentiated into the foot, seta and capsule.
(iv) Meiosis occurs in some cells of the capsule giving rise to haploid spores.
(v) The spores germinate to form free - living sporophytes.
267390
The correct statements about bryophytes are:
(i) Sex organ in bryophytes are multicellular
(ii) The sperms are released into water which swim through water to fuse with the egg to produce the zygote outside the body.
(iii) Immediate reduction division occurs in zygotes.
(iv) A multicellular body called a sporophyte is then produced.
(v) The sporophyte is not -free living but attached to photosynthetic gametophyte.
267391
In mosses, the second gametophytic stage is leafy stage. Consider and choose the correct statements about leafy stage.
(i) They consist of upright, slender axes bearing spirally arranged leaves.
(ii) This leafy stage bears the sex organs.
(iii) They are attached to the soil through multicellular rhizoids.
(iv) Leafy stage is produced from the secondary protonema as a lateral bud.