General
✓✗Pinus seed cannot germinate and establish without fungal association. This is because
- its seeds contain inhibitors that prevent germination
- its embryo is immature
- it has obligate association with mycorrhizae
- it has very hard seed coat
General
✓✗Spore dissemination in some liverworts is aided by:
- Peristome teeth
- Elaters
- Indusium
- Calyptra
General
✓✗Heterospory and ligulate leaves occur in
- Selaginella
- Pteridium
- Funaria
- Riccia
General
✓✗Select the mismatch.
- Cycas – Dioecious
- Salvinia – Heterosporous
- Equisetum – Homosporous
- Pinus – Dioecious
General
✓✗Which pteridophyta is called as horse tail?
- Equisetum
- Lycopodium
- Marsilea
- Selaginella
General
✓✗Which one of the following classification is best-suited for the identification of seed plants?
- Bentham and Hooker's classification
- Engler and Prantl's classification
- Hutchinson's classification
- Takhtajan's classification
General
✓✗Assertion: Funaria archegonium has maximum concentration of sucrose at the tip of neck.
Reason: Male gametes show chemotropic movement.
Reason: Male gametes show chemotropic movement.
- If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
- If both Assertion and Reason are true, but the Reason is not the correct explanation of the Assertion.
- If Assertion is true, but Reason is false.
- If both Assertion and Reason are false.
General
✓✗Chloroplasts are present in the spores of
- Rhizopus
- Funaria
- Yeast
- Dryopteris
General
✓✗Young fronds are covered with
- ramenta
- scales
- indusium
- annulus
General
✓✗Classification given by Bentham and Hooker is
- artificial
- natural
- phylogenetic
- numerical
General
✓✗Cone bearing pteridophyta are
- Lycopsida and Psilopsida
- Filiciiiae and Lycopsida
- Filicinae and Sphenopsida
- Lycopsida and Sphenopsida
General
✓✗Which one of the following statements is wrong?
- Agar-agar is obtained from Gelidium and Gracilaria
- Laminaria and Sargassum are used as food
- Algae increase the level of dissolved oxygen in the immediate environment
- Algin is obtained from red algae, and carrageenan from brown algae.
General
✓✗An aquatic quadrifoliate pteridophyte is?
- Isoetes
- Marsilea
- Equisetum
- Ophioglossum
General
✓✗Which one of the following statements about Cycas is incorrect?
- It has circinate vernation.
- Its xylem is mainly composed of xylem vessel.
- Its roots contain some blue-green algae.
- It does not have a well organized female flower
General
✓✗Which of the following is a flagellated algae?
- Chlamydomonas
- Ulothrix
- Saccharomyces
- Agaricus