QUESTION IMAGE
Question
a pea plant that has round seeds has the genotype rr. it is crossed with a pea plant that has wrinkled seeds and the genotype rr. what is the probability that the offspring will have wrinkled seeds?
0 percent
25 percent
50 percent
75 percent
Step1: Realizar el cruce genético
El primer padre tiene el genotipo \( Rr \) y el segundo \( rr \). Las gametas del primer padre son \( R \) y \( r \), y las del segundo padre son \( r \) y \( r \).
Step2: Construir la tabla de Punnett
| \( R \) | \( r \) | |
|---|---|---|
| \( r \) | \( Rr \) | \( rr \) |
Step3: Calcular la probabilidad
De las cuatro combinaciones posibles en la tabla de Punnett (\( Rr, rr, Rr, rr \)), dos (\( rr \)) corresponden a semillas arrugadas. La probabilidad es \( \frac{2}{4} = 0.5 = 50\%\).
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50 percent