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#Question id: 14838

Sequence of amphibian lens induction postulated by experiments on embryos of the frog Xenopus laevis ; EXCEPT

#Unit 5. Developmental Biology
  1. Unidentified inducers (possibly from the foregut endoderm and cardiac mesoderm) cause the synthesis of the Otx2 transcription factor in the head ectoderm during the late neurula stage.
  2. As the neural folds rise, inducers from the anterior neural plate (including the region that will form the retina) induce Pax6 expression in the anterior ectoderm that can form lens tissue.
  3. As the neural folds rise, inducers from the anterior neural plate (including the region that will form the retina) induce Pax6 expression in the anterior ectoderm that can form lens tissue.
  4. The optic vesicle secretes BMP and FGF family paracrine factors, which induce the synthesis of the Sox transcription factors and initiate observable lens formation

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#Question id: 4774

#Unit 8. Inheritance Biology

Which of the following above cross showing one gene segregation?
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#Question id: 4775

#Unit 8. Inheritance Biology

Female parent

Male Parent

Offspring

Recessive phenotype

Dominat  phenotype

F1 A- all recessive phenotype

Dominat  phenotype 

Recessive phenotype

F-1 B all dominant phenotype

     F1A

     F1 B

 all dominant  phenotype

Which of the following is correct observe for above genetic cross? 
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#Question id: 4776

#Unit 8. Inheritance Biology

True breeding agouti mice with genotype AABB were cross to true breeding albino mice with genotype aabb. All F1 offspring having agouti phenotype were allowed to intercross to produce F2 progeny as following 

                                 A- B -          agouti,

                                 aa B-            black

                                 --  bb            albino

Following genetic cross and there proportional?

Genetic cross

Proportional of albino

AaBbXAaBb

A

AaBb X aabb

B

Aabb X aaBb

C

AABbX aaBb

D

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#Question id: 4777

#Unit 8. Inheritance Biology

Two non allelic genes P and Q governed Glume color in sorghum.

P... qq  = blakish purple           P.. Q...  = raddish purple

pp Q...  = brown                      ppqq    =  brown  

A cross was allowed between PpQq and ppQq. What is proportional of their progeny with Blakish, Raddish and brown respectively? 
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#Question id: 4778

#Unit 8. Inheritance Biology

The following is the biochemical pathway for purple pigment production in flowers of sweet pea: A cross is made between two parents with the genotype: Aabb x AaBb. What is proportional of plant with purple pigment?
TLS Online TPP Program

#Question id: 4779

#Unit 8. Inheritance Biology

Fruit color in eggplant due to interaction of three non-allelic genes A, B and C.  These three non-allelic genes are produce purple phenotype when they come together or separately. Following some genotype and their phenotype is given.

                                  A- -- --         Purple

                                 -- B- --         Purple

                                 -- -- C-         purple

                                 aabbcc         White    

 A Plant genotype AaBbcc was cross to plant with genotype aabbcc. What is probability of white phenotype among their offspring?