Consider the following statements about plant tissue culture techniques and their applications:

(A) Meristem culture is used for virus-free plant production.

(B) Seed culture increases efficiency of seed germination.

(C) Callus culture is used to produce somatic embryos.

(D) Anther culture and ovary culture both produce haploid plants.

(E) Suspension culture is mainly used for producing multicellular tissue masses.

(F) Protoplast culture is applied for somatic hybrid production.

Which of the following combinations of statements 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: