1. Use this information to answer questions 1-3. In freesias (a type of lily), a

Question

1. Use this information to answer questions 1-3. In freesias (a type of lily), a cross was made between a red-flowered male with smooth leaves and a yellow-flowered female with rough leaves. The F1 generation consisted of male and female plants with red flowers and smooth leaves. When the F1 males and females are crossed, the F2 offspring consisted of 16 red-flowered females with rough leaves, 48 red-flowered females with smooth leaves, 15 yellow-flowered females with rough leaves, 49 yellow- flowered females with smooth leaves, 31 red-flowered males with rough leaves and 97 red-flowered males with smooth leaves. 1. What is the best explanation for the genetic basis of red flower color? Cn autosomal dominant autosomal recessive sex-linked dominant sex-linked recessive there are not enough data to tell 0.5 points QUESTION 2 What is the best explanation for the genetic basis of rough leaves? autosomal dominant autosomal recessive sex-linked dominant sex-linked recessive there are not enough data to tell 0.5 points QUESTION 3 If you cross an F2 female red flowers and smooth leaves to an F1 male, what type of offspring are you unlikely to see? females with yellow flowers and rough leaves females with red flowers and rough leaves females with yellow flowers and smooth leaves males with red flowers and rough leaves males with yellow flowers and rough leaves

Explanation / Answer

The F1 generation gives a total of 145 red flowerrs and smooth leaves plants,47 red flowers and rough leaves, 45 yellow and smooth leaves and 15 yellow and rough leaves plants.

This follows the dihybrid cross ratio of 9:3:3:1. Based on this information we can say that......

Answer1) Red flower colour inheritance is auitosomal dominant.

Answer2) Rough leaves inheritance is autosomal recessive.

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