Easy 725 likes

Question

Which of the following stages is not included under the Sporophytic generation in the alternation of generations of the fern?

(a) Prothallus

(b) Sorus

(c) Sporangium

(d) Spore mother cell

WBBSE Class X Life Science 02 (b) Reproduction 01 Mark 2023

Answer

(a) Prothallus

Explanation

In the fern life cycle, the sporophytic generation includes diploid stages such as sorus, sporangium, and spore mother cell. The prothallus is part of the gametophytic generation, which is haploid and produces gametes. Therefore, the prothallus does not belong to the sporophytic generation.

Related Questions

More WBBSE Easy level questions

1/12
Easy
Q. On the basis of the relationship between the first pair of words write a suitable...
A. Yeast Explanation: Fragmentation is a type of asexual reproduction seen in filamentous...
Easy
754
Q. Describe how Yeast completes the process of budding.
A. Yeast completes budding by forming a small outgrowth or bud on the...
Easy
874
Q. Explain how Bryophyllum undergoes vegetative propagation with the help of an adventitious bud.
A. Bryophyllum undergoes vegetative propagation through adventitious buds that arise along the margins...
Moderate
901
Q. Explain the following three significances of cell division
A. Growth: Cell division increases the number of cells, allowing an organism to...
Moderate
577
Q. Consider the differences between asexual and sexual reproduction and select which of the options is/are...
A. (d) I, II Explanation Sexual reproduction requires two parental organisms of opposite...
Easy
Q. Explain the following two methods of asexual reproduction: (a) Budding (b) Regeneration
A. (a) Budding: In budding, one or more small outgrowths or buds are...
Moderate
944
Q. Explain the alternation of generation in Fern with the help of a word diagram.
A. In the life cycle of a fern, alternation of generation means there...
Moderate
607
Q. Show the alternation of generation in fern with the help of a word diagram.
A. Alternation of Generation in Fern (Word Diagram): Sporophyte (2n) → Sporangium →...
Moderate
Q. How is micropropagation performed? Which phenomena occur during telophase stage of mitosis in an animal...
A. Micropropagation is rapid vegetative multiplication using tissue culture technique.​ It is performed...
Easy
634
Q. In DNA, which of the following base pairs is correct? (a) A—T (b) A—T (c)...
A. (a) A—T Explanation: According to base pairing rules in DNA, adenine (A)...
Easy
903
Q. Compare the steps of mitosis in plant cells and animal cells and select which are...
A. (b) II, IV Explanation: In plant cells, cytokinesis happens by cell plate...
Easy
559
Q. Which of the following statements is NOT correct? (a) Fibrin helps in blood clotting. (b)...
A. (c) Insulin increases the level of glucose in blood. Explanation: According to...