Which of the following is a part of mitosis in the cells of seed plants? A) Centriole B) Asters C) Spindle D) Cleavage
Which of the following colours of light work (s) best for photosynthesis? A) Green B) Yellow C) Blue and red D) Violet and yellow
In plant cells the dark reaction of photosynthesis take place in the? A) Cytosol B) Endoplasmic reticulum C) Leucoplast D) Chloroplast
Axillary bud and terminal bud derived from the activity of? A) Lateral meristem B) lntercalary meristem C) Apical meristem D) Parenchyma
As a tree grows older, which of the following increased more rapidly in thickness? A) Heart wood B) Sap wood C) Phloem D) Cortex
Karyotaxonomy is based on: A) Organic evolution B) Chemotaxonomy C) Morphological characters D) Number of chromosomes