In the cross mt⁺al⁺ $\times$ mt al,the mt locus shows an M_II frequency of 12%,the al locus an M_II frequency of 10%.Most asci were parental ditypes.The order of loci is: A)al - centromere - mt. B)al - mt - centromere. C)centromere - al - mt. D)centromere - mt - al. E)mt - centromere - al.

Question

Quizplus · Accepted Answer

The presence of mostly parental ditype asci suggests that the two loci are closely linked, with relatively low recombination frequencies of 12% and 10% for the mt and al loci, respectively. The correct gene order places the locus with the intermediate recombination frequency (al) between the centromere and the other locus (mt), leading to the arrangement: centromere - al - mt.

In the Cross Mt+al+ ×\times× Mt Al,the Mt Locus Shows an MII Frequency of 12%,the

In the Cross Mt⁺al⁺ $\times$ Mt Al,the Mt Locus Shows an M_II Frequency of 12%,the