13- In pea plants, yellow seed is completely dominant over green seed. If a student crosses a heterozygous yellow seed plant with a green seed plant, what proportion of the F1 generation will generate green seeds? a. 25% b. 100% c. 50% d. 0% 14- In pea plants, purple flower is completely dominant over white flower. If a student crosses a homozygous purple flower with a white flower, what percentage of the F1 generation will be white? a) 25% b) 100% c) 50% d) 0%

13- In pea plants, yellow seed is completely dominant over green seed. If a student crosses a heterozygous yellow seed plant with a green seed plant, what proportion of the F1 generation will generate green seeds? a. 25% b. 100% c. 50% d. 0% 14- In pea plants, purple flower is completely dominant over white flower. If a student crosses a homozygous purple flower with a white flower, what percentage of the F1 generation will be white? a) 25% b) 100% c) 50% d) 0%

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What is a test cross?
Use this information to answer the next two questions. Multiple alleles control the coat colour of rabbits. ● The dominant allele, C, produces grey colour. The Coh allele produces silver grey (chinchilla) colour when homozygous. The Challele is recessive to both the full colour allele and the chinchilla allele. ● ● The Challele produces a white colour with black extremities (Himalyan) The Ca allele is recessive to all other alleles, and produces no pigment (albino). The dominance hierarchy is C> Cch > Ch > Ca. The table below provides the possible genotypes and phenotypes for coat colour in rabbits. Notice that four genotypes are possible for full-colour but only one for albino. Phenotypes Full Colour Chinchilla Light grey Himalayan Albino JUL Genotypes CC, CCch, Cch, CCª Cch Coh Question 2 (2.5 points) In the first cross, a rabbit with the chinchilla coat colour is mated to a rabbit with a Himalavan coat colour that is known to be homozygous for this trait Calculate the 25 tv MIZA…
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