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TLS Online TPP Program
#Question id: 40446
#Botany
Assertion–Reason
Assertion: Red algae appear red.
Reason: Presence of phycoerythrin masks chlorophyll.
TLS Online TPP Program
#Question id: 40447
#Botany
Match the staining technique/structure in List-I with the correct chemical reagent in List-II.
| List-I (Technique/Structure) | List-II (Reagent/Stain) |
| A. Endospore Staining | I. Crystal Violet |
| B. Gram Staining (Primary) | II. Malachite Green |
| C. Fungal Cell Wall | III. Chitin (Stains with Cotton Blue) |
| D. Bacterial Transformation | IV. DNA (Identified by Avery et al.) |
TLS Online TPP Program
#Question id: 40448
#Botany
Given below are two statements regarding bacterial genetics:
Statement I: F. Griffith discovered the phenomenon of transformation using Streptococcus pneumoniae.
Statement II: In Griffith's experiment, the heat-killed S-strain was virulent and caused the death of mice when injected alone.
Choose the correct answer:
TLS Online TPP Program
#Question id: 40449
#Botany
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Nigella is not a member of the family Characeae.
Reason (R): Nigella is a genus of angiosperms (flowering plants) known for producing black cumin seeds, whereas Characeae is an algal family.
In the light of the above statements, choose the correct answer:
TLS Online TPP Program
#Question id: 40450
#Botany
Match the Algal genera in List-I with the shape of their Chloroplast in List-II.
| List-I (Genera) | List-II (Chloroplast Shape) |
| A. Chlamydomonas | I. Girdle shaped |
| B. Spirogyra | II. Reticulate (Network-like) |
| C. Ulothrix | III. Cup shaped |
| D. Oedogonium | IV. Ribbon shaped (Spiral) |
TLS Online TPP Program
#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: