TLS Online TPP Program

#Question id: 15957


The technique of somatic hybridization involves the following steps; 

#Unit 12. Applied Biology
  1. Selection of hybrid cells→ culture of the hybrid cells and regeneration of hybrid plants→ fusion of the protoplasts of desired species/varieties→ Isolation of protoplasts
  2. Culture of the hybrid cells and regeneration of hybrid plants→ fusion of the protoplasts of desired species/varieties→ Isolation of protoplasts→ Selection of hybrid cells
  3. Isolation of protoplasts→ fusion of the protoplasts of desired species/varieties→ selection of hybrid cells→ culture of the hybrid cells and regeneration of hybrid plants
  4. Isolation of protoplasts→ Selection of hybrid cells→ culture of the hybrid cells and regeneration of hybrid plants→ fusion of the protoplasts of desired species/varieties
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TLS Online TPP Program

#Question id: 3261

#Unit 11. Evolution and Behavior

A parent population (P) is change into daughter populations (Q) which grow in habitats. After 1000 generations, the equilibrium frequency distribution of of the daughter populations is shown in the figure below. For reference, the vertical line represents the mean of the parent population. Which type of natural selection?

TLS Online TPP Program

#Question id: 3262

#Unit 11. Evolution and Behavior

In a population, the genotype frequencies are: f(A1A1)= 0.35; f(A1A2) = 0.30; f(A2A2) = 0.35; Which of the following statement is correct?

TLS Online TPP Program

#Question id: 3263

#Unit 11. Evolution and Behavior

From an evolutionary point of view, plant tendrils derived from leaves and those derived from stems are examples of

TLS Online TPP Program

#Question id: 3264

#Unit 11. Evolution and Behavior

Which of the following is (are) true of natural selection?

TLS Online TPP Program

#Question id: 3265

#Unit 11. Evolution and Behavior

If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?

TLS Online TPP Program

#Question id: 3266

#Unit 11. Evolution and Behavior

One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is