Explanation needed please, not answers! Questions 1-6 concern the following info

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Explanation needed please, not answers!

Questions 1-6 concern the following information. A drosophila melanogaster female with coral-colored eyes, wrinkled wings and bronze body color was crossed with a normal male. All the F1 offspring were normal. An F1 female fly was crossed with a male homozygous (or possibly hemizygous) for the recessive allele at each locus controlling these traits, and produced the following testcross progeny (1248 total):

18 coral eyes                                                               22 bronze body and wrinkled wings

93 coral eyes and bronze body    86 wrinkled wings

157 coral eyes and wrinkled wings             156 bronze body

354 completely normal                                       362 coral eyes, bronze body, wrinkled wings

Which mutant allele(s) in this case, if any, is dominant to its respective wild-type allele?

Coral-colored eyes only

Bronze body color only

Wrinkled wings only

All of the above three mutant alleles (a-c) are dominant

None of the above three mutant alleles (a-c) are dominant

Which mutant allele(s) in this cross, if any, is/are x-linked?

Coral-colored eyes only

Bronze body color only

Wrinkled wings only

All of the above three mutant alleles (a-c) are x-linked

None of the above three mutant alleles (a-c) are x-linked

How many loci are heterozygous in the F1 females?

0

1

2

3

4 or more

What are the values of chi-square and degree of freedom for fit to expected Mendelian proportions in the above cross?

817 with 8 df

817 with 7 df

817 with 6 df

2202 with 8 df

2202 with 7 df

If any genes are linked, what is the correct order?

Coral-bronze-winkled

Bronze-coral-wrinkled

Coral-wrinkled-bronze

Bronze-wrinkled

If any genes are linked, what is the total map distance?

61   b. 54       c. 46        d. 28       e. no linkage

Explanation / Answer

1)All of the above three mutant alleles (a-c) are dominant

this is because they are crossed with normal male.This makes all the mutants alleles bring dominant over normal males.

2)None of the above three mutant alleles (a-c) are x-linked because they are all females not males.

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