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Earn 100

Life cycle of Polysiphonia and Chlamydomonas are respectively
(a)Haplontic and diplontic
(b)Diplontic and haplodiplontic
(c)Haplodiplontic and diplontic
(d)Haplodiplontic and haplontic

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Important Questions on Plant Kingdom
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Based on the following characteristics of life cycles identify and arrange the plants respectively.
A) Haplontic | i) Laminaria |
B) Diplo-haplontic | ii) Volvox |
C) Haplo-diplontic | iii) Polysiphonia |
D) Diplobiontic | iv) Salvinia |
E) Diplontic | v) Fucus |

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A. Independent one-celled or many-celled gametophytes.
B. Multicellular dependent sporophyte.
C. One or few celled dependent gametophytes.
D. Reduced sporophyte as 1-celled structure.
These statements are correct for which group of plants?

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Reason: Zygotic meiosis occurs in Spirogyra.

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Which of these have diplontic life cycle?

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HARD
A. Femur - Longest bone in human body.
B. Coxal - Formed by the fusion of three bones ilium, ischium and pubis.
C. Hyoid - A single U-shaped bone at the base of buccal cavity.
D. Scapula - Large triangular flat bone situated in the ventral part of the thorax between the second andseventh rib.
E. Occipital bone - Possess obturator foramen for the exit of spinal cord.

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