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TLS Online TPP Program

#Question id: 11741

phloem transport indicating the importance of long distance transport in plants, the experiments demonstrated that removal of a ring of bark around the trunk of a tree, which removes the phloem. What will be its effect?

#Unit 6. System Physiology – Plant
  1. Effectively stops sugar transport from the leaves to the roots without altering water transport through the xylem
  2. No effect on the sugar transport and also the water transport takes place through the xylem

  3. Stops sugar tansport from the leaves to the roots with altering water transport through the xylem

  4. Stop sugar transport from root to shoot without altering water transport
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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?
TLS Online TPP Program

#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?
TLS Online TPP Program

#Question id: 4821

#Unit 8. Inheritance Biology

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

#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?
TLS Online TPP Program

#Question id: 4823

#Unit 8. Inheritance Biology

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

#Question id: 4824

#Unit 8. Inheritance 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?