The pedigree chart represents three generations. Red family members have a disease that is caused by an autosomal dominant gene. Consider the chart. The father in Generation I must have what genotype? D represents the allele for the disease; d the allele for normal. A) DD B) Dd C) XDYD D) XDYd

the father have the genotype of Dd.

Explanation:

As the desies is autosomal dominant so their is no involvement of sex chromosome and the presence of any dominant allel on an autosome will cause the desies to occur in the individual. As their are two types of chromosome in individual the sex chromosomes and the autosomes.as the desies is dominant so their will be no skip generation and no carier in the pedigree with the presence of one allel will result in apperance of the desise.The desies is autosomal so the male and female individuals are equally effected.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.