Problem 23.4 A dark-red strain and a white strain of wheat are crossed and produ

Question

Problem 23.4 A dark-red strain and a white strain of wheat are crossed and produce an intermediate, medium-red F1 When the F1 plants are interbred, an F2 generation is produced in this ratio: 1 dark-red: 4 medium-dark-red: 6 medium-red: 4 light-red: 1 white Further crosses reveal that the dark-red and white F2 plants are true breeding. Part A Based on the ratios in the F2 population, how many genes are involved in the production of color? O 1 gene 2 genes O 3 genes 4 genes 5 genes Submit My Answers Give Up Part B

Explanation / Answer

a. Based on the F2 population, 2 genes are involved in the production of color. Also, we can calculate the number of genes as follows:

Number of phenotype= 2n +1 where n is number of genes invloved and number of phenotype is 5

5= 2n + 1

n=2

b. Two genes= 4 capital letters

The ratio goes 1:4:6:4:1, so we know it is 4 capital letters : 3:2:1:0

Dark red= 4

medium dark red= 3

medium red= 2

light red= 1

white=0

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.