question_answer 16)

    All genes located on the same chromosome (a) form different groups depending upon their relative distance (a)form one linkage group (b)will not from any linkage group (c)form interactive groups that affect the phenotype

Answer:

                    (b) All the genes, present on a particular chromosome form a linkage group. The numberof linkage group of a species correspond to the total number of different chromosomes of that species. It is not simply the number of chromosomes in haploid set. e.g., in human male=22 pairs of autonomies + 1X-chromosome 1Y-choromosme i.e., 24 linkage groups and in female = 22 pairs autosomes + 2X-chromosomes i.e., 23 linkage groups. While options (a), (c) and (d) are incorrect.