question_answer 7)

Two heterozygous parents are crossed. If the two loci are linked what would be the distribution of phenotypic features in F generation for a dihybrid cross? 

Answer:

In case of two heterozygous parents, showing linkage, result will be:                 Parents:       BpLl                X    BpLl                        Genotype                 (Blue long)          (Blue long)          Phenotype In  all the combinations may show parental characters as the genes are completely linked. With all possible genotypes in , progeny may exhibit blue long type of phenotype in above case. However in case of incomplete linkage, parental combinations will be more and new combinations will be less in number.