Question: Please Show All Your Work To Help Me Understand Better! 1. You Are Studying Three Genes In Squash And You Are Testing Whether Or Not The Genes Are Linked. You Know There Are Two Alleles For Each Gene With Typical Dominance/recessive Relationships. The Gene And Allele Symbols Are: P, Which Causes Plump Squash; S, Which Causes Sweet Flesh; D, Which Causes …

Please show all your work to help me understand better!

1.

You are studying three genes in squash and you are testingwhether or not the genes are linked.

You know there are two alleles for each gene with typicaldominance/recessive relationships. The gene and allele symbolsare:

P, which causes plump squash;
S, which causes sweet flesh;
D, which causes dark colored seeds;

p, which causes thin squash.
s, which causes bitter flesh.
d, which causes colorless seeds.

You obtain F1 generation squash, which has the phenotypes:dark colored, plump, and sweet. You are unsure ofthe genotypes and phenotypes of the P (parental) generation, butknow that all offspring of the F₁ are heterozygous foreach gene.

You begin your investigation by conducting a testcross of the F1generation (all heterozygous) with squash that iscolorless, thin, and bitter (homozygousrecessive). You obtain the following offspring distributions from5,000 total offspring:

plump, bitter, colorless:   1995

plump, sweet, colorless:   400

thin, sweet, colorless:   94

thin, bitter, colorless: 7

plump, sweet, dark colored:   3

plump, bitter, dark colored: 96

thin, bitter, dark colored: 390

thin, sweet, dark colored:   2015

a) If the genes had not been linked, but instead wereindependently assorting, how many offspring would you predict toobserve in each of the eight classes? (enter the number ofoffpsring)

2. For the question above, what would be the map distance in mapunits between P (plump/thin) and S (sweet, bitter)? (Round tothe nearest whole number, such as 8)

3.

For the question above, what would be the map distance in mapunits between P (plump/thin) and C (dark colored, colorless)?(Round to the nearest whole number, such as 39)

4.

For the question above, what would be the map distance in mapunits between S (sweet/bitter) and C (dark colored, colorless)?(Round to the nearest whole number, such as 18)

5.

What is the number of observed double crossovers in thisproblem? (Round to the nearest whole number, such as3)

6.

What is the expected number of double crossovers? Round do the nearest whole number