Punnett Square Worksheet 1 - Jefferson

Punnett Square Practice
1. B= Brown eyes b= blue eyes Mom= Bb Dad= BB What are the eye color possibilities if they chose to have children?
2. A green pea plant (Gg) is crossed with a yellow pea plant (gg).
3. A tall plant (TT) is crossed with a tall plant (Tt).
4. A tall plant (Tt) is crossed with a short plant (tt).
5. A red flower (Rr) is crossed with a white flower (rr).
6. A white flower (rr) is crossed with a white flower (rr).
7. In rabbits, black fur is dominant over white fur. Show the cross of a heterozygous black male with a homozygous white female.
8. Tall is dominant over short in pea plants. Show the cross of a homozygous short plant is crossed with a homozygous tall plant.
9. In humans, free-ear lobes are dominant to attached. Two parented that are both heterozygous free are expecting a child. What are the chances that the child will have free ear lobes of attached?
10. Wrinkled seed are recessive to smooth seeds. Show a plant that always produces wrinkled seeds crossed with a heterozygous smooth seeds producing plant.
11. As in the previous problem… Show a heterozygous smooth plant crossed with another heterozygous smooth seed producing plant.
12. Blue eyes are dominant to red eyes in rabbits. Show a heterozygous blue-eyed rabbit crossed with a red-eyed rabbit.
13. In fruit flies, red eyes are dominant over white eyes. Show a cross between two white-eye fruit flies.
14. Curly hair is recessive, and straight hair is dominant. A woman with curly hair marries a man who is homozygous dominant for straight hair. Predict the outcomes for their children.
15. Black hair is homozygous dominant. Brown hair is heterozygous. Blonde hair is homozygous recessive. A woman with brown hair marries a man with brown hair. What are the possible outcomes for their kids?
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