Typical growth curve in plants is
sigmoid
linear
Stair-steps shaped
Stair-steps shaped
A.
sigmoid
Sigmoid curve shows the growth in plants. It contains three phases
(i) Lag phase(initial phase)
(ii) Log phase(initial phase)
(iii) Steady phase (stationary phase).
In which one of the following, the male and female gametophytes don't have free -living independent existence ?
Pteris
Funaria
Polytrichum
Polytrichum
The technical term used for the androecium in a flower of China rose (Hibiscus rosa siensis( is
monadelphous
diadelphous
polyandrous
polyandrous
One of the commonly used plant growth hormone in tea plantations is
ethylene
abscisic acid
Zeatin
Zeatin
Phototropic curvature is the result of uneven distribution of
gibberellin
phytochrome
cytokinins
cytokinins
Stroma in the chloroplasts of higher plants contains
light -independent reaction enzymes
Light -dependent reaction enzymes
ribosomes
ribosomes
