Hey biology experts professionals…lol!!?
QUESTION: Can you please help me to create a Punnett Square for the parental cross. (a punnett square is a table set up to assist in working out the genetic combinations in offspring). And then could you please help me to make a list of the possible genotypes you would expect from this cross. Then, decide on the phenotype associated with each genotype and include it in the list.
Favorite Answer
we must first have the rules in writing dominance (as uppercased) and recessive (as lowercased).
So here it goes;
R=red eye
r=white eye
——————
G=green body
g=rusty body
——————
Parent plants
Red eyed and Green bodied X white and rusty
RRGG X rrgg
RG X rg
=(dihybrid F1 offspring) RrGg > then we’ll let it self-fertilize
so here, we’re gonna make a chart.
make a 4×4 box, having 16 squares.
let’s visualize it like this
RrGg
after self-fertilization
l
l
•
EGGS
1/4RG .. 1/4 Rg …1/4 rG.. 1/4 rg
……———————–
S… l…….l……l……l……l
P….———————–
E….l…….l……l……l…..
R…————————
M…l…….l……l……l……
……————————
…… l…….l……l……l……l
each of the box must have same
..oohh..wait..it’s hard to explain ..i’ll upload it in a pic..wait
…
eli here is the link. it is hard to explain w/o messenger..but i hope this’ll help.
http://i198.photobucket.com/albums/aa298…
————————
as long as there are dominants, they rule over the recessive traits.
so, count them all..(i counted it for you)
RRGG – 1/16
red eyed, green body
RRGg – 2/16
red eyed, green body
RrGG – 2/16
red eyed, green body
RRgg – 1/16
red eyed, rusty body
RrGg – 4/16
red eyed, green body
Rrgg – 2/16
red eyed, rusty body
rrGG – 1/16
white eyed, green body
rrGg – 2/16
white eyed, green body
rrgg – 1/16
white eyed, rusty body
16/16
Your genotypes will all be the same b/c you had bure breed parents. They will all be RwGo. Now, I’m assuming the dominate traits are RR and GG.
Your phenotypes will all be red eye/green body.
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