I think I missed two of these biology questions but I\'m not sure which two. Tha

Question

I think I missed two of these biology questions but I'm not sure which two. Thank you for any help.

3. Lutinos are considered the albino version of the green series of parakeets. A lutino features lush, buttercup-yellow feathers on the body and head, silver- white cheek patches and paler yellow coloring on the tail and primary flight feathers. The lutino phenotype is inherited in a sex-linked recessive manner, with the green (ZB) allele being dominant to the lutino (Zb) allele. which of the following crosses would result in 50% of the offspring being lutino females? zBzb × z@w ZBzB × z@w

Explanation / Answer

1) option 4 is correct. 50% of the total progeny means equal male and female. in this 2 male and 2 female is present and both the female will lutino.

this condition is fulfilled by ZbZb x ZBW = ZW is female.

so females are lutino and male are normal.

2) dominance = no of progeny / total no of progeny.

red eye = 204 /403 = 0.5

eosin eye = 101/403 = 0.25

white eye = 98/403 = 0.24

order is red > eosin>white.

option E is correct.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---