#Question id: 11729
#Unit 6. System Physiology – Plant
Given some properties of cytokinin;
a) Kinetin is a naturally occurring plant growth regulator
b) it does occur as a base in the DNA of any species
c) It is a by-product of the heat-induced degradation of DNA
d) the deoxyribose sugar of adenosine is converted to a
furfuryl ring and shifted from the 9 position to the 6 position on the adenine
ring
which of the following given statements incorrect?
#Question id: 11730
#Unit 6. System Physiology – Plant
Following are some statements regarding plant hormones.
a) Auxin and Cytokinin promote cell division
b) Auxin and Ethylene can cause similar plant responses,
such as induction of flowering in pineapple and inhibition of stem elongation
c) cytokinin and ethylene signal transduction pathways are
derived from the bacterial two-component regulatory system mainly multistep
version
d) Gibberellins Are Synthesized via the terpenoid Pathway
e) GA promotes seed dormancy while ABA causes seed
germination
Which of the following from the given above combination is incorrect?
#Question id: 11731
#Unit 6. System Physiology – Plant
Following are some statements regarding the Cytokinin, which of the following is incorrect?
#Question id: 11732
#Unit 6. System Physiology – Plant
Cytokinins are defined as compounds that have biological
activities similar to those of trans-zeatin. These activities include the
ability to do the following:
a) Induce cell division in callus cells in the presence of
an auxin
b) Promote bud or root formation from callus cultures when
in the appropriate molar ratios to auxin
c) promote senescence of leaves
d) Promote expansion of dicot cotyledons
Which one of the following activities are incorrect?
#Question id: 11733
#Unit 6. System Physiology – Plant
The synthetic cytokinin compounds that have not been identified in plants, these are;
#Question id: 11734
#Unit 6. System Physiology – Plant
Some molecules act as cytokinin antagonists, which are able to block the action of cytokinins that is