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: 19819

#Unit 12. Applied Biology

Gene for gene relationship is mainly found in which type of pathogens

#Question id: 19820

#Unit 12. Applied Biology

The hypersensitive response is triggered by certain unique molecules, called elicitors, of pathogen origin. The elicitors are recognized by receptor-like molecules present in 

#Question id: 19821

#Unit 12. Applied Biology

The incompatible reaction is found in obligate parasites, and is associated with hypersensitive response of the host triggered by certain unique molecules called 

#Question id: 19822

#Unit 12. Applied Biology

Recognition of which molecules by receptor-like molecules present in resistant plants initiates several biochemical reactions?

#Question id: 19823

#Unit 12. Applied Biology

The elicitors are recognized by receptor-like molecules present in resistant plants. This recognition initiates several biochemical reactions such as

1. Phytoalexin biosynthesis

2. Cell wall reinforcement

3. Release of hydrolytic enzymes

4. Rapid cell death

Which of the following is/are correct?

#Question id: 19824

#Unit 12. Applied Biology

Several biochemical reactions heading to the production of active oxygen species, phytoalexin biosynthesis occurs due to