Multiple Choice QuestionsWhich of the following are a group of micronutrients for plants
Fe, Mn, Cu, Mo, Zn
Fe, Mn, Cu, O, C
Cu, B, Cl, Fe, Ca
Ca, Mg, Fe
Match Column- I with Column - 2 and choose the correct option from below.
| Column - I | Column - II |
| A. Marginal placentation | (i) Sunflower |
| B. Axile placentation | (ii) Mustard |
| C. Parietal placentation | (iii) Lemon |
| D. Basal placentation | (iv) Pea |
A-(iv), B - (iii), C- (ii), D- (i)
A -(iv), B- (iii), C- (i), D - (ii)
A-(iv), B-(i), C- (ii), D - (iii)
A - (iii), B- (iv), C- (ii), D - (i)
Vernalisation is subjected to plants growing in
tropical areas
sub tropical areas
temperate areas
hot areas/arctic region.
The phenomenon that operates in the formation of root or shoot in a callus culture is
differentiation
re-differentiation
de-differentiation
re-juvenation
A.
differentiation
The cells derived from root apical and shoot apical meristems and cambium differentiate and mature to perform special functions. This act leading to maturation is termed as differentiation.
Differentiation is the process by which a less specialized cell becomes a more specialized cell type. It is part of developmental biology. Different tissues have different kinds of organisms inside the cells. Differentiation occurs many times during the development of a multicellular organism.
Which of the following genes do not occur naturally in living organisms
Bt genes
RNAi genes
Cry genes
Endogeneous cytoplasmic defence genes
Choose the correct pair
Coconut, cucurbits - dioecious
Honeybee, Rotifers - parthenogenesis
Ornithorhyncus, Whale - viviparity
Frog, Peacock - external fertilisation
Select the incorrect statement.
Periplaneta has compound eyes.
Earthworm shows segmentation.
Ascaris shows sexual dimorphism.
Liver fluke has a complete alimentary canal
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