Round (R) is dominant over wrinkled (r) and Yellow (Y) is dominant over green (y

Question

Round (R) is dominant over wrinkled (r) and Yellow (Y) is dominant over green (y)
What happens if a a true- breeding Yellow individuals is crosses with a heterozygous for Round and homozygous recessive for the other trait.
1) list the phenotype of the offspring?
2) what are the genotype of the offspring?
3) what if the two different genotypes of offspring from the above cross are bred, how many phenotype are in F1 generation?

4) what is the ratio of yellow to green offspring?
5) what percent of offspring are wrinkled? Round (R) is dominant over wrinkled (r) and Yellow (Y) is dominant over green (y)
What happens if a a true- breeding Yellow individuals is crosses with a heterozygous for Round and homozygous recessive for the other trait.
1) list the phenotype of the offspring?
2) what are the genotype of the offspring?
3) what if the two different genotypes of offspring from the above cross are bred, how many phenotype are in F1 generation?

4) what is the ratio of yellow to green offspring?
5) what percent of offspring are wrinkled? Round (R) is dominant over wrinkled (r) and Yellow (Y) is dominant over green (y)
What happens if a a true- breeding Yellow individuals is crosses with a heterozygous for Round and homozygous recessive for the other trait.
1) list the phenotype of the offspring?
2) what are the genotype of the offspring?
3) what if the two different genotypes of offspring from the above cross are bred, how many phenotype are in F1 generation?

4) what is the ratio of yellow to green offspring?
5) what percent of offspring are wrinkled?

Explanation / Answer

Answer:

1. P1: YYrr * yyRr

F1: YyRr (Yellow round), Yyrr (Yellow wrinkled)

2. Genotypes of the offspring: YyRr, Yyrr

3. P: YyRr * Yyrr

F1: Yellow round = YYRr, YyRr

     Yellow wrinkled = YYrr, Yyrr

     Green Round = yyRr

     green wrinkled = yyrr

4. Yellow offspring to green offspring = 3:1

5. Wrinkled = (4/8*100) = 50%

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