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#Question id: 3290


Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms?

#Section 3: Genetics, Cellular and Molecular Biology
  1. temporal isolation

  2. behavioral isolation

  3. habitat isolation

  4. gametic isolation

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#Question id: 4821

#Section 3: Genetics, Cellular and Molecular 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

#Section 3: Genetics, Cellular and Molecular 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

#Section 3: Genetics, Cellular and Molecular Biology

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

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#Question id: 4823

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

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

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#Question id: 4824

#Section 3: Genetics, Cellular and Molecular Biology

If plant with genotype AaBb is test cross where A and B are link at 10 map unit  in trance configuration then the probability of getting AaBB and AaBb genotype respectively?

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#Question id: 4825

#Section 3: Genetics, Cellular and Molecular Biology

How many genetically different gametes can be made by an individual of genotype AaBbCcDd if gene A, B are completely link and other are unlink?