In the five kingdoms, which single kingdom contains blue-green algae, nitrogen fixing bacteria, and methanogenic archaebacteria?
Consider the following features:
I. Chlorophyll a and Chlorophyll c
III. Floridean starch
IV. Flagella 2 in number, unequal and lateral
Which of these are seen in Phaeophyceae?
(1) I, II, III
(2) I, II, IV
(3) II, III, IV
(4) I, II, III, IV
The endosperm of a gymnosperm develops _______ fertilization, whereas the endosperm of an angiosperm develops _________ fertilization.
(1) before, before
(2) after, after
(3) after, before
(4) before, after
In cymose type of inflorescence:
(1) Main axis continues to grow and the flowers are borne in acropetal succession.
(2) Main axis continues to grow and the flowers are borne in basipetal succession.
(3) Growth is limited and the flowers are borne in basipetal succession.
(4) Growth is limited and the flowers are borne in acropetal succession.
Ovary is one-chambered but it becomes two chambered due to the formation of a false septum in:
(1) Dianthus and Primrose
(2) Mustard and Argemone
(3) Sunflower and Marigold
(4) Pea and Lemon
In monocotyledonous seeds the outer covering of endosperm separates the embryo by a proteinous layer called as:
Which of the following is not a floral character of the family Fabaceae?
(1) Calyx - Sepals five, gamosepalous; imbricate aestivation
(2) Corolla - Petals five, polypetalous; vexillary aestivation
(3) Andreoecium - Ten, diadelphous, anther dithecous
(4) Gynoecium - Ovary inferior, bicarpellary, unilocular with many ovules
I. The stem is branched
II. Roots have fungal association in the form of mycorrhiza
III. The male and female strobili are borne on different trees
Of the above statements:
(1) Only I is correct
(2) Only II is correct
(3) Only I and II are correct
(4) I, II and III are correct
The egg apparatus is made up of two ________ and one ________ at the ________ end of the embryo sac.
(1) antipodals, egg cell, micropylar
(2) synergids, egg cell, chalazal
(3) egg cells, synergids, chalazal
(4) synergids, egg cells, micropylar
Consider the following features seen in a plant:
I. Male and female reproductive organs are generally found in separate flowers.
II. The male flowers having a number of long filaments terminating in exposed stamens.
III. The female flowers having long, feather-like stigmas.
The flowers of this plant would most likely be pollinated by: