Multiple Choice QuestionsPhototropic curvature in Avena coleoptile is the result of uneven distribution of
auxin
starch
gibberellins
phytochrome
Study of bakanae disease of rice led to discovery of
auxins
bakery rice
Both (a) and (b)
gibberellins
Equipment used for the measurement of growth in plants is known as
respirometer
auxanometer
atmometer
potometer
When an ovary develops into a fruit without fertilization it is called
porogamy
apospory
apogamy
parthenocarpy
D.
parthenocarpy
Parthenocarpicfruits are seedless and develop from ovary without fertilization.
Porogamy is the fertilization of a seed plant involving passage of the pollen tube into the ovule by the micropyle.
Apospory is the development of 2n gametophytes, without meiosis and spores, from vegetative, or non- reproductive, cells of the sporophyte.
Apogamy is the development of 1n sporophytes without gametes and syngamy from vegetative cells of the gametophyte.
GA usually promotes
sterility in flowers
maleness in flowers
femaleness in flowers
Both (b) and (c)
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