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Bio 130 – Quiz March 28. Q. 1 - Imagine crossing a pea heterozygous at the loci for flower color (white versus purple) and seed color (yellow versus green)

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Presentation on theme: "Bio 130 – Quiz March 28. Q. 1 - Imagine crossing a pea heterozygous at the loci for flower color (white versus purple) and seed color (yellow versus green)"— Presentation transcript:

1 Bio 130 – Quiz March 28

2 Q. 1 - Imagine crossing a pea heterozygous at the loci for flower color (white versus purple) and seed color (yellow versus green) with a second pea homozygous for flower color (white) and seed color (yellow). What types of gametes will the first pea produce? A.two gamete types: white/white and purple/purple B.two gamete types: white/yellow and purple/green C.four gamete types: white/yellow, white/green, purple/yellow, purple/green D.four gamete types: white/purple, yellow/green, white/white, and purple/purple E.one gamete type: white/purple/yellow/green

3 Q. 2 - A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates A.the blending model of genetics. B.true-breeding. C.dominance. D.a dihybrid cross. E.the mistakes made by Mendel.

4 Q. 3 – In dachsunds Brown hair (B) is dominant to yellow hair (b). Curly hair (C) is dominant to straight hair (c). We mate a female BBcc with a male bbCC. What is the chance of a puppy with yellow curly hair? A.0 B.1/4 C.1/8 D.3/8 E.3/16

5 Q. 4 – In dachsunds Brown hair (B) is dominant to yellow hair (b). Curly hair (C) is dominant to straight hair (c). We mate a female BbCc with a male bbCC. What is the chance of a puppy with yellow curly hair? A.½ B.¼ C.1/8 D.3/8 E.1/16


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