contestada

Spiders X, a species you have been studying for years, comes in two different color morphs (red and black) in the wild. During a series of breeding experiments, you notice that occasionally an orange morph appears. The orange morph is a little less frequent than the red morph, and the black morph is the most common. (3pts) From this example, what can we deduce about the inheritance of these geneS that control the color phenotype?

Respuesta :

Dominant epistasis is shown by these Gene. And when they are inherited the They show a 12:3:1 phenotype  ratio.

Explanation:

  • Given that, Black and red are wild type and black is the most common color morph.
  • Suppose, gene A is responsible for colour black, and Gene B is responsible for Colour red .
  • In the breeding experiment it is noticed that black is the most common, red being less common and orange is the least common.
  • From the observation we can conclude that :

        Whenever, A dominant allele of Gene A is present it will mask the either alleles of Gene B and express black color. If dominant allele  of Gene A is absent then B will express itself Giving red color morphs. And if Both the genes lack their dominant allele then orange color morphs will be produced.

 []random breeding between heterozygous colour morphs are shown in the attachment].

Ver imagen ShiningHalley

Otras preguntas