PLEASE HELP!-Genotypic & Phenotypic Ratios

[LiL Homie]

Describe the genotypic and phenotypic ratios for each of the following (assume the parental generations are true breeding when not stated otherwise):

a)The F2 of monohybrid cross with full dominance

b)The F2 of monohybrid cross with incomplete dominance

c)The F2 of a monohybrid cross with codominance.

d)The F2 of a dihybrid cross with full dominance at each genetic locus and no interactions between alleles at the two loci. (independent assortment)

e)The F2 of a dihybrid cross with incomplete dominance at both loci and no interactions between alleles at the two loci. (independent assortment)

f)The F2 of a dihybrid cross with codominance at both loci and no interactions between alleles at the two loci. (independent assortment)

----------

I know it's a lot, but I just don't understand how to even start this or what letters I'm supposed to use to make the crosses.I just keep confusing myself!

Can someone please try to help explain these to me! I would really appreciate it, Thank you!

[Mokele]

We've got no objection to helping with your homework, but we're not going to do it for you. We may check your answers, or explain parts you're having difficulty with, though.

 

Mokele

[ecoli]

start with this:

http://w3.dwm.ks.edu.tw/bio/activelearner/10/ch10c2.html

[LiL Homie]

start with this:

http://w3.dwm.ks.edu.tw/bio/activelearner/10/ch10c2.html

 

That's a big help, Thank You!