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Two autosomal loci control horn color in unicorns. Pure-breeding gold-homed unic

ID: 32045 • Letter: T

Question

Two autosomal loci control horn color in unicorns. Pure-breeding gold-homed unicorns were mated to pure-breeding silver unicorns. The F1 were all gold. The F2 generation consisted of 55 gold, 15 bronze, and 4 silver unicorns. Use these data to hypothesize the type of epistasis that is operating here. Ho: The mode of inheritance for horn color in unicorns is A larger experiment was conducted to test the null hypothesis. The F2 generation in the larger data set consisted of 73 bronze-homed unicorns, 283 gold homed unicorns and 20 silver horned unicorns. Conduct the Chi-square test using the larger data set. Round all expected numbers correctly to three decimal digits. The expected number of Gold Unicorns is The expected number of Silver Unicorns is The expected number of Bronze Unicorns is Rounded to three decimal digits, the calculated chi-square value is The number of degrees of freedom for this test is Rounded to two decimal digits, the critical value is The statistical conclusion is

Explanation / Answer

the mode of inheritence for horn colour in unicorn is autosomal dominant or autosomal recessive.

Gold unicorn 166

Silver unicorn 392

Bronze unicorn 126

Performin chi square test the expected number of total 684

Gold unicorn 24

Silver unicorn 57

Bronze unicorn 18