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In a cross between a pure breed dominant and pure breed recessive, what is the percentage ratio

of expressing the dominant to recessive trait in the first filial

generation?

A. 1 dominant : 1 recessive

B. 1 dominant : 3 recessive

C. 3: recessive : 1 dominant

D. 1 dominant : 0 recessive


Sagot :

Answer:

1:1:1:1 is the phenotypic ratio which is classic Mendelian ratio for a test cross in which the alleles of the two genes assort independently into gametes (BbEe X bbee). It is a test done to investigate the genotype of parents