In rabbits, gray hair is dominant to white hair. Also in rabbits, black eyes are dominant to red eyes.
a. What are the phenotypes (descriptions) of rabbits that have the following genotypes?
Ggbb,ggBB, ggbb,GgBb ,
b. A male rabbit with the genotype GGbb is crossed with a female rabbit with the genotype ggBb the square is set up below. Fill it out and determine the phenotypes and proportions in the offspring.
c. Show the cross between a ggBb and a GGBb.​

Dear student,                     
​Please find below the solution to the asked query  
   

​a. ​Phenotypes of the following genotypes are:
Ggbb: Gray hair, red eyes
ggBB: White hair, black eyes
ggbb: White hair, red eyes
GgBb: Gray hair, black eyes

b. ​Cross between a male rabbit with the genotype GGbb and a female rabbit with the genotype ggBb is as follows:
 
Gametes Gb Gb Gb Gb
gB GgBb GgBb GgBb GgBb
gB GgBb GgBb GgBb GgBb
gb Ggbb Ggbb Ggbb Ggbb
gb Ggbb Ggbb Ggbb Ggbb

Phenotypes obtained- 8 gray hair, black eyes (GgBb): 8 gray hair, red eyes (Ggbb).

c. Cross between a ​ ggBb and a GGBb is as follows:
 
Gametes gB gB gb gb
GB GgBB GgBB GgBb GgBb
GB GgBB GgBB GgBb GgBb
Gb GgBb GgBb Ggbb Ggbb
Gb GgBb GgBb Ggbb Ggbb
 
Hope this information will clear your doubts about the topic.   
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