Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 : Ginger has a prostrate-growing rhizome.
Statement 2 :Shoot growth is not effected by gravity.
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Solution
Ginger is horizontal in position and generally branched and producing aerial leaves or shoots above ground and adventitious roots on lower side in favourable season.Thus shoot growth is not effected by gravity.
Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 : A plant having unisexual flowers are called dioecious.
Statement 2 :Mango is a polygamous plant.
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Solution
When a plant bears only one type of unisexual flowers,it is termed as dioecious. Some plants possess three types of flowers - perfect (intersexual), staminate and female or neuter. They are called polygamous. Polygamous plants as for example,mango and cashewnut bear perfect and imperfect flowers on the same individual.
Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 :In corymb, all the flowers lie at the same level.
Statement 2 :Pedicels of all the flowers are of same length.
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Solution
In corymb, the main axis is shortened and lower flowers have much longer stalks or pedicels than the upper ones so that all the flowers are brought more or less to the same level. Corymb inflorescence is found in Cassia sp.
Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 :Leaves of Bryophyllum, Begonia help in vegetative multiplication.
Statement 2 :Leaves of these plants possess adventitious buds.
Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 : A simple leaf has undivided lamina.
Statement 2 :Leaves showing pinnate and palmate venations have various type of incisions.
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Solution
A leaf having a single or undivided lamina is called simple leaf. The lamina can have different types of incisions,which may reach upto half (-fid), more than half (-partite)or near the base or midrib (-sect). Depending upon the pinnate or palmate venation, the incisions are known as pinnatifid palmatifid, pinnatipartite, palmatipartite,pinnatisect and palmatisect etc.
Tetradynamous conditon is characteristics of
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Solution
There are six free stamens, inner four are large and outer two are small, e.g., Mustard, Iberis (Cruciferae family).
Alternate type of phyllotaxy is found in __________.
Flower of Fabaceae is
Sleeping movements commonly occur in plants of family :
The main purpose of phyllotaxy for the leaves is to provide sufficient