- PCB 3063-Spring18-DIERCKSEN Activities and Due Dates Ch7 Homework 2018 11:59 P

Question

- PCB 3063-Spring18-DIERCKSEN Activities and Due Dates Ch7 Homework 2018 11:59 PM 968.91100 Grad Print Calculator bnd Periodic Table of 9 Map apling Learning Suppose a geneticist is using a three-point testcross to map three linked Drosophila recessive mutations called f, w, and b, where f is associated with abnormally fast movement: wis associated with wavy movement pattern; and b is associated with broad wings. The geneticist first crosses fies to homozygous fast, wavy flies. Next, he testcrosses the F, progeny to fast, wavy, broad parents and obtains the following results. Based on this data, select the order of the three genes homozygous broad Number 607 607 219 225 241 213 F1 Testcross Progeny Phenotype wbr broad fast, wavy wavy fast, broad tast wavy, broad b wf fast wild type wavy, broad

Explanation / Answer

According to data given in the question, recessive mutation broad(b) and fast wavy(fw) are parental type (most frequent).The gene order can be determined by the map distance or comparing double recombinants( least frequent)with the parental type.Double recombinants in the given data are fast,wavy,broad(fwb).The gene order is fast broad wavy(fbw).

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

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