Question 21 to 28.
21. The upward movement of water and nutrients in plants is
primarily driven by_a) Capillary action b) Gravity c) Root pressure d) Transpiration
22. The word "cell" was first observed in 1665 by a scientist called a) Mathias Schleden b) Theodor Schwann c) Robert Hooke d) Aristotle Stragiritis
23. Resource competition which occurs when a number of organisms utilise
competition also called
common resources
that are in short supply a) Interference
b) Scramble c) Contest
d) Private
24.
is the percentage of individuals having a genotype that express the associated phenotype.
particular Codominance b) Penetrance c) Epistasis d) Expressivity
a) 25. The genotypic ratio of a monohybrid cross is
b) 3:1 c) 2:1:1 d) 9:3:3:1 26.
The assignment or placement of organisms to groups is a) Taxonomy b) Taxon c) Nomenclature d) Systematics called
a) 1:2:1
27. The alternate form of a gene is_a) Alternative b) Recessive character c) Allele d) Dominant character
28. One of the following is called stress plant hormone a) Ethylene b) Abscissic acid c) Cytokinins d) Auxins
21. d) Transpiration
22. c) Robert Hooke
23. b) Scramble
24. d) Expressivity
25. b) 3:1
26. a) Taxonomy
27. c) Allele
28. b) Abscissic acid