In Drosophila melanogaster, the gene for eye color is located on the X chromosome. The allele for red eye color (Xw+) is dominant over the allele for white eye color (Xw) . You examine a vial of 100 flies that are all offspring from a single genetic cross. You see only red-eyed females and white-eyed males present. The genotypes of the parents were ____.
A) Xw+Xw+; XwY
B) Xw+Xw; XwY
C) XwXw; Xw+Y
D) Xw+Xw; Xw+Y
E) XwXw; XwY
Correct Answer:
Verified
Q18: As an undergraduate research assistant, you are
Q19: Which process exchanges alleles between homologous chromosomes?
A)
Q20: A recombinant phenotype is _.
A) a combination
Q21: Sex-linked genes are _.
A) expressed differently based
Q22: In humans, sex determination generally depends upon
Q24: The X chromosome _.
A) carries the SRY
Q25: If you see a male calico cat,
Q26: In Drosophila melanogaster, the gene for eye
Q27: During normal human embryonic development, if _,
Q28: In Drosophila melanogaster, the gene for eye
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