Lab Assignment #3 IDH: Applied Questions nated by Drosophila genetics, you decid

Question

Lab Assignment #3 IDH: Applied Questions nated by Drosophila genetics, you decide to conduct a few more crosses to the inheritance patterns of some other interesting genes Cres: The adh gene (adh)and the scartet 6st) ene are located 14mu spart on Chromosome 3. Cross B: x. The adh gene (adh) is on chromosome 3 and the white gene (wh) is on Chromosome a. Using appropriate notation to indicate syntenic and non-syntenic genes, fill in the table below. You can assume the mutant alleles are recessive. (6 marks) Cross A Alcohol sensitive female X scarlet male WT female X alcohol sensitive,white eye male Cross B P1 generation Genotypes 0.5/geno) Coupling or repulsion? F1 genotype List the genotypes and proportion of the parental and recombinant type gametes generated by the F1 male from the crosses above: (4 marks) b. Cross A Parental: Genotype Recombinant: proportion genotype roportion

Explanation / Answer

The genes which are present on same chromosome those are called linked or syntenic genes. The genes adh and st in the cross A are the syntenic genes where as the genes which are present on different chromosomes those are called independent genes or non linked genes or non syntenic genes.

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