VegT is critical in generating the germ cells, two genes activated by VegT protein that encodes the transcriptional factor as well as paracrine factors that instruct the cell layers to become their fate. which of the following statements is incorrect?

a) Sox17 paracrine factor that specify cells to be endoderm

b) Nodal transcription factors that instruct the cell layers above them to become mesoderm

c) Nodal paracrine factors that instruct the cell layers above them to become mesoderm

d) Sox17 transcription factor that specify cells to be endoderm

#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?

#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? 

#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?

#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?

#Question id: 4780

#Unit 8. Inheritance Biology

In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one dominant allele R is present at one locus and at least one dominant allele P is present at a second locus (genotype R_ P_). A rose comb is produced when at least one dominant allele is present at the first locus and two recessive alleles are present at the second locus (genotype R_pp). A pea comb is produced when two recessive alleles are present at the first locus and at least one dominant allele is present at the second (genotype rrP_). If two recessive alleles are present at the first and at the second locus (rrpp), a single comb is produced. Which of the following cross would produce ½ walnut and ½ pea comb ?

#Question id: 4781

#Unit 8. Inheritance Biology

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

P= blakish purple          

Q = raddish purple (dependent over P gene )

If heterozygous Raddish purple were cross with homozygous brown color .What are phenotypic ratio of  progeny?