TLS Online TPP Program

#Question id: 11236


Which two structures play direct roles in permitting bacteria to adhere to each other, or to other surfaces?

1.  capsules

2.  endospores

3.  fimbriae

4.  plasmids

5.  flagella

#Unit 9. Diversity of Life Forms
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 3 and 4
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TLS Online TPP Program

#Question id: 11728

#Unit 6. System Physiology – Plant

Which of the following is the precursor of  Cytokinin?

TLS Online TPP Program

#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?

TLS Online TPP Program

#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?

TLS Online TPP Program

#Question id: 11731

#Unit 6. System Physiology – Plant

Following are some statements regarding the Cytokinin, which of the following is incorrect?

TLS Online TPP Program

#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?

TLS Online TPP Program

#Question id: 11733

#Unit 6. System Physiology – Plant

The synthetic cytokinin compounds that have not been identified in plants, these are;