Dr. Richard C. Hall, a farmer in North Carolina, is growing hiscrop of collard g

Question

Dr. Richard C. Hall, a farmer in North Carolina, is growing hiscrop of collard greens. He has a new variety that he callscollard red. He does some crosses of pure breeding blue topure breeding red collards. The F1 was all green. Whenhe did a self cross of the F1, he got 9 green, 3 blue, and 4red.
    
1. (M T/F) The genes show dominant epistasis.

2. (MC) If Dr. Richard picked one of the F2 red, he could besure:
    a. it is homozygous for both genes.
    b. it is pure breeding forred.    
    c. it has the same genotype as theParental red.
    d. all the above
    e. a and b

3. (MC) If Dr. Richard took at random a F2 blue plant and crossedit with a pure breeding green plant, Dr. Richard would get:
    a. all blue
    b. a mixture of green and blue
    c. a mixture of green, blue, and red
    d. all green
    e. cannot be determined from data given
    
4. (MC) If Dr. Richard crossed an F2 Blue plant with the parentalred plant, what are the chances he would get all green plants?
    a. 1 in 3
    b. 2 in 3
    c. all would be green
    d. none of the above
    e. cannot be determined from data given.

5. Determine the genotypes of the parental and F1 progeny. Dothe F2 branch for phenotype groups.

Explanation / Answer

1. (M T/F) The genes show dominantepistasis. TRUE

2. (MC) If Dr. Richard picked one of the F2 red, he could besure:
    a. it is homozygous for both genes.
    b. it is pure breeding forred.    
    c. it has the same genotype as theParental red.
    d. all the above
    e. a and b

3. (MC) If Dr. Richard took at random a F2 blue plant and crossedit with a pure breeding green plant, Dr. Richard would get:
    a. all blue
    b. a mixture of green and blue
    c. a mixture of green, blue, and red
    d. all green
    e. cannot be determined from data given
    
4. (MC) If Dr. Richard crossed an F2 Blue plant with the parentalred plant, what are the chances he would get all green plants?
    a. 1 in 3
    b. 2 in 3
    c. all would be green
    d. none of the above
    e. cannot be determined from data given.

5. Determine the genotypes of the parental and F1 progeny. Dothe F2 branch for phenotype groups.

              pure breeding blue to pure breeding red collards.

                             BB     X   RR

                                  BR---- green.

------------------------------

                          BR---- green. X     BR----green.

                                   B             R        B            R

B

R

B

B B

B R

R

B R

R R

            

                   B B blue X    BR

B

R

B

B B

B R

R

B R

R R

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