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#Question id: 3284


The fitness of three genotype are A1A1 < A1A2 = A2A2) Which of the following observation correct?

#Unit 11. Evolution and Behavior
  1. Directional selection against dominant allele A1

  2. Directional selection against recessive allele A1

  3. Directional selection against dominant allele A2

  4. Directional selection against recessive allele A2

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TLS Online TPP Program

#Question id: 15875

#Unit 12. Applied Biology

Suspension cultures show both numerical and structural chromosomal changes such as;

TLS Online TPP Program

#Question id: 15876

#Unit 12. Applied Biology

The following growth regulators (GRs)- auxins, cytokinins, ABA and GA3 are used in plant tissue culture, The common range of concentrations used are as follows:
GROWTH REGULATOR(GRs)                                     CONCENTERATION
A) AUXIN                                                                       i) 0.1-3 mg/L
B) GA3                                                                          ii) 0.2 mg/L
C) CYTOKININ                                                           iii) 0.1-1 mg/L
D) ABA

TLS Online TPP Program

#Question id: 15877

#Unit 12. Applied Biology

Zinc as micronutrient is used in culture media for____

TLS Online TPP Program

#Question id: 15878

#Unit 12. Applied Biology

A vitamin which has been found to inhibit callus formation and improve growth and quality of shoots.

TLS Online TPP Program

#Question id: 15879

#Unit 12. Applied Biology

During which Phase lasts about 3-4 cell generations (the time taken for doubling of cell number), and the duration of a cell generation may vary from 22-48 hr, depending mainly on the plant species?

TLS Online TPP Program

#Question id: 15880

#Unit 12. Applied Biology

 Which one types of culture is ideal for the determination of effects of individual nutrients on cell growth and metabolism.