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28 Sep 2019
Consider a species of dinosaurs and assume that females are XX andmales are XY. Further assume that black scales, B, is a sex-linkeddominant trait and that green scales, b, is the recessive trait.The gene resides on the X gene only.
A female dinosaur with black scales and a male dinosaur with greenscales have 34 baby dinosaurs. In this F1 generation, there are 9female and 8 males that have black scales and there are 8 femaleand 9 males that have green scales.
What is the most likely genotype of the mother dinosaur?
a.X(B)X(B) b.X(B)X(b) c.X(b)X(b) d.X(B)Y e.X(b)Y
What genotype(s) will not be observed in the F2 generation fromcrosses between F1 females with black scales and F1 males withgreen scales?
a.X(B)X(B) and X(B)Y
b. X(b)X(b)
c. X(B)Y
d. X(B)X(B)
e. X(B)X(B) and X(B)Y
f. X(b)Y
g. X(B)X(b)
Which gender of the F2 offspring could green scales beexpected?
a. both males and females
b.females only
c .males only
Consider a species of dinosaurs and assume that females are XX andmales are XY. Further assume that black scales, B, is a sex-linkeddominant trait and that green scales, b, is the recessive trait.The gene resides on the X gene only.
A female dinosaur with black scales and a male dinosaur with greenscales have 34 baby dinosaurs. In this F1 generation, there are 9female and 8 males that have black scales and there are 8 femaleand 9 males that have green scales.
What is the most likely genotype of the mother dinosaur?
a.X(B)X(B) b.X(B)X(b) c.X(b)X(b) d.X(B)Y e.X(b)Y
What genotype(s) will not be observed in the F2 generation fromcrosses between F1 females with black scales and F1 males withgreen scales?
a.X(B)X(B) and X(B)Y
b. X(b)X(b)
c. X(B)Y
d. X(B)X(B)
e. X(B)X(B) and X(B)Y
f. X(b)Y
g. X(B)X(b)
Which gender of the F2 offspring could green scales beexpected?
a. both males and females
b.females only
c .males only
A female dinosaur with black scales and a male dinosaur with greenscales have 34 baby dinosaurs. In this F1 generation, there are 9female and 8 males that have black scales and there are 8 femaleand 9 males that have green scales.
What is the most likely genotype of the mother dinosaur?
a.X(B)X(B) b.X(B)X(b) c.X(b)X(b) d.X(B)Y e.X(b)Y
What genotype(s) will not be observed in the F2 generation fromcrosses between F1 females with black scales and F1 males withgreen scales?
a.X(B)X(B) and X(B)Y
b. X(b)X(b)
c. X(B)Y
d. X(B)X(B)
e. X(B)X(B) and X(B)Y
f. X(b)Y
g. X(B)X(b)
Which gender of the F2 offspring could green scales beexpected?
a. both males and females
b.females only
c .males only
Nelly StrackeLv2
28 Sep 2019
