Q. Statement 1 (Assertion): Protoplasts located in close proximity are more likely to undergo fusion during the washing phase of a PEG treatment. 

Statement 2 (Reason): The removal of PEG molecules disrupts the organized structure of the plasma lemma, creating localized instabilities that facilitate membrane merging

Which of the following is correct? 

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#Question id: 40451

#Botany

Given below are two statements regarding the reproduction in Algae:

Statement I: In Rhodophyceae (Red Algae), motile stages (zoospores or motile gametes) are completely absent in their life cycle.

Statement II: In Phaeophyceae (Brown Algae), the gametes are pyriform (pear-shaped) and bear two laterally attached unequal flagella.

Choose the correct answer:

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#Question id: 40452

#Botany

Given below are two statements regarding the economic importance of Algae:

Statement I: Agar-agar, used in microbial culture media, is obtained from Laminaria and Sargassum.

Statement II: Chlorella is a unicellular alga rich in proteins and is used as a food supplement by space travelers.

Choose the correct answer:

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#Question id: 40453

#Botany

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Chara is known as "Stone Wort."

Reason (R): The plant body of Chara is heavily encrusted with calcium carbonate deposits.

In the light of the above statements, choose the correct answer:

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#Question id: 40454

#Botany

Given below are two statements regarding the economic importance of Algae:

Statement I: Agar-agar, used in microbial culture media, is obtained from Laminaria and Sargassum.

Statement II: Chlorella is a unicellular alga rich in proteins and is used as a food supplement by space travelers.

Choose the correct answer:

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#Question id: 40455

#Botany

Match the Algal genera in List-I with their characteristic features in List-II.

List-I (Genera)	List-II (Feature)
A. Volvox	I. Coenobial colony (Motile)
B. Hydrodictyon	II. Water Net (Non-motile Coenobium)
C. Ectocarpus	III. Isomorphic Alternation of Generations
D. Polysiphonia	IV. Triphasic Life Cycle (Haplobiontic)

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#Question id: 40456

#Botany

Given below are two statements regarding the thallus organization in Algae:

Statement I: The thallus of Fucus is differentiated into holdfast, stipe, and frond (lamina).

Statement II: Vaucheria has a coenocytic, siphonaceous thallus without septa.

Choose the correct answer: