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Name __________________________
Date _____________ Period _______
Expected and Observed Results
1. Mendel made the following crosses with pea plants. For the pea plants round seeds (R) are dominant over wrinkled seeds (r). Complete the Punnett squares and answer the questions about each cross.
a. b. c. d.
2. He crossed a round pea (R) plant with a wrinkled pea (r) plant. His results were 126 round peas and 122 wrinkled peas. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
3. He crossed a round pea plant with a wrinkled pea plant. His results were 30 round pea plants and 0 wrinkled pea plants. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
4. He crossed a round pea plant with a round pea plant. His results were 306 round pea plants and 110 wrinkled pea plants. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
5. He crossed a round pea plant with a round pea plant. His results were 300 round pea plants and 0 wrinkled pea plants. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
6. In corn plants, normal height (H) is dominant over short height (h). Complete these four Punnett squares showing different crosses. Then, shade red all the homozygous dominant offspring. Shade green all the heterozygous offspring. Leave all the homozygous recessive offspring unshaded.
7. In flies, long wings (L) is dominant over short wings (l). Complete these four Punnett squares showing different crosses. Then, shade red all of the offspring with long wings. Leave all the short wing offspring unshaded.
8. In guinea pigs, short hair (S) is dominant over long hair (s). Complete the following Punnett squares according to the directions
Date _____________ Period _______
Expected and Observed Results
1. Mendel made the following crosses with pea plants. For the pea plants round seeds (R) are dominant over wrinkled seeds (r). Complete the Punnett squares and answer the questions about each cross.
a. b. c. d.
2. He crossed a round pea (R) plant with a wrinkled pea (r) plant. His results were 126 round peas and 122 wrinkled peas. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
3. He crossed a round pea plant with a wrinkled pea plant. His results were 30 round pea plants and 0 wrinkled pea plants. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
4. He crossed a round pea plant with a round pea plant. His results were 306 round pea plants and 110 wrinkled pea plants. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
5. He crossed a round pea plant with a round pea plant. His results were 300 round pea plants and 0 wrinkled pea plants. Which of the Punnett squares above best shows the parents and offspring that could give these results? ______
6. In corn plants, normal height (H) is dominant over short height (h). Complete these four Punnett squares showing different crosses. Then, shade red all the homozygous dominant offspring. Shade green all the heterozygous offspring. Leave all the homozygous recessive offspring unshaded.
7. In flies, long wings (L) is dominant over short wings (l). Complete these four Punnett squares showing different crosses. Then, shade red all of the offspring with long wings. Leave all the short wing offspring unshaded.
8. In guinea pigs, short hair (S) is dominant over long hair (s). Complete the following Punnett squares according to the directions