Sunday, January 22, 2012

Biology homework plz help?

If white snapdragon flowers are incompletely dominant to red snapdragon flowers, then the result of fertilization between 2 pink flowers would be



a. 3/4 red and 1/4 white offspring

b. half white and half red offspring.

c. 1:2:1 phenotype and genotype ratio

d. 3/4 white and 1/4 red offspring

e. all pink flowers
Biology homework plz help?
just form a table where R represents the red dominant gene and r the other recessive one and then multiply them(think of the --- as blank spaces, i had to put them there for the letters to be in the right places):



------R ------r



R---RR-----rR



r ----rR------rr



Therefore 1 red, 2 pink and 1 white so the answer should be (c) 1:2:1 phenotype and genotype ratio

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