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
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
1 answer