Compulsive channel switching (i.e. channel surfing) is found to be caused by a r

Question

Compulsive channel switching (i.e. channel surfing) is found to be caused by a recessive (but highly prevalent) gene on the X chromosome (cs). Also located on the X chromosome are two other recessive genes-one that causes an addiction to watching football on TV (fba), and one that causes excessive burping in public (bp). The location of these genes on the X chromosome are 25 (cs/cs+), 43 (fba/fba+) and 76 (bp/dp+) map units. The level of interference over this linkage group (i.e. the Coefficient of interference)

Explanation / Answer

cs+ fba bp+ / cs fba+ bp

8 phenotypes         crossovers                    Number

1. cs+ fba bp+    None; the parentals           479

2. cs fba+ bp    None; the parentals            473

3. cs+ fba+ bp Single; between cs+ and others   15

4. cs fba bp+ Single; between cs+ and others      13

5. cs+ fbabp Single, between bp+ and others     9

6. cs fba+ bp+ Single, between bp+ and others    9

7. cs+ fba+ bp+    Double recombinants                   1

8. cs fba bp       Double recombinants                    1

Total                                                                     1000

Probability of gamete containing alleles cs+ fba+ bp = 15

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

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