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#Question id: 5008


Adaptive radiations can be a direct consequence of four of the following five factors. Select the exception.

#Unit 11. Evolution and Behavior
  1. vacant ecological niches

  2. genetic drift

  3. colonization of an isolated region that contains suitable habitat and few competitor species

  4. evolutionary innovation

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#Question id: 4817

#Unit 8. Inheritance Biology

How many different gametes can be formed by an organism with genotype AaBbCCddEe, If a, b and c gene are completely link?

TLS Online TPP Program

#Question id: 4819

#Unit 8. Inheritance Biology

Plant with genotype AB/ab is test cross, two genes are linked are 10 map units apart. What proportion of progeny will have the genotype aabb?

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#Question id: 4820

#Unit 8. Inheritance Biology

Which of the following gametes are produced in grater proportional by an individual of genotype Ab/aB if the genes are in the same chromosome with some recombination between them?

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#Question id: 4821

#Unit 8. Inheritance Biology

What are frequency of recombination  if one cell carry out cross over every 50 cell undergoes meiosis ?

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#Question id: 4822

#Unit 8. Inheritance Biology

In a particular species of mammal black hair (B) is dominant to green hair (b) and red eyes (R) are dominant to white eyes (r). If a BbRr individual is mated with a bbrrindividual the expected phenotypic ratio of the offspring is 1 black-red : 1 black-white: 1 green-red : 1 green-white. However, when you mate these individuals you find that the phenotypic ratio of the offspring is 6 black-red :1 black-white : 1 green-red : 6 green-white. What could account for this difference?

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#Question id: 4823

#Unit 8. Inheritance Biology

Which one of the following DNA markers can be used to distinguish between a homozygote and heterozygote ?