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The life cycle of some plants do not involve a free-living sporophyte and the dominant, photosynthetic phase is the free-living gametophyte. This type of life cycle is called

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Important Questions on Plant Kingdom

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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Which of the following does not show diplontic life cycle?
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Zygotic meiosis is characterstic of
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Life cycle of Ectocarpus and Fucus respectively are:
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants

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
MEDIUM
Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Consider the following statements.
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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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Which of the following have haploid plant body in most of organisms?
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Which of the following correctly represents the type of life cycle patterns from the options given?

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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Bacteria lack alternation of generation because there is
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Spirogyra has a
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
In the haplontic life cycle of many algae:
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Which pattern of life cycle is exhibited in bryophyte and pteridophyte?
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Assertion: Spirogyra shows haplontic life cycle.
Reason: Zygotic meiosis occurs in Spirogyra.
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
In Pteridophytes, reduction division occurs when:
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Two distinct generations in a single life history are common in
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants

Which of these have diplontic life cycle?

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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Which of the following is correct with respect to diplohaplontic life cycle?
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Formation of a sporophyte from gametophyte and vice versa is termed as
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Following pairs are given, find the option which have correct pairs.

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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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Cotyledons are also called-
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Biology>Diversity in the Living World>Plant Kingdom>Life Cycles in Plants
Distinct alternation of generation is found in