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TLS Online TPP Program

#Question id: 8717

Molecular clocks are more reliable when ________.

#XL - S Microbiology
  1. the surrounding pH is close to 7.0
  2. most mutations of highly conserved DNA sequences should have no functional effect
  3. the DNA codes for amino acid sequences whose side groups (or R groups) have a neutral pH
  4. a significant proportion of mutations are not acted upon by natural selection
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TLS Online TPP Program

#Question id: 15727

#XL - S Microbiology

The stationary phase is forced on the culture by , identify correct option
1. Depletion of the nutrients
2. Due to accumulation of cellular wastes
3. Accumulation of the nutrients
4. Removal of cellular wastes
TLS Online TPP Program

#Question id: 15728

#XL - S Microbiology

Single cells can be cultured using the following techniques:
(1) Filter paper raft-nurse tissue technique
(2) Microchamber technique
(3) Microdrop method
(4) Bergman's plating technique
(5) Thin layer liquid medium
Select the option with correct choices.
TLS Online TPP Program

#Question id: 15729

#XL - S Microbiology

The Somatic Embryos regenerating from an explants or a callus are termed as
TLS Online TPP Program

#Question id: 15730

#XL - S Microbiology

Haploid plants may be obtained from culturing
1) Anther culture
2) Pollen culture
3) Stem culture
4) Ovary culture
TLS Online TPP Program

#Question id: 15731

#XL - S Microbiology

Conditions for rooting involves
1. low salt
2. reduced sugar level
3. addition of NAA
Which of the above statements combinations are correct
TLS Online TPP Program

#Question id: 15732

#XL - S Microbiology

In the phases of callus growth which phase shows cells expansion increase.