Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F1 hybrids were then crossed to generate the F2 . In the F2 there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
b) What is the contribution of each dominant allele to the phenotype in cm?
d) The F1 from (b) is then crossed to give an F2. What proportion would you expect in the F2 of each extreme phenotype?
1) Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F_{1} hybrids were then crossed to generate the F_{2} . In the F_{2} there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
a) What would be the size and genotype of the F_{1} from a cross between a true-breeding 11 cm plant and a true-breeding 47 cm plant?
b) The F_{1} from (b) is then crossed to give an F_{2}. What proportion would you expect in the F_{2} of each extreme phenotype?
c) In a cross between a 29cm plant and a 20cm plant what would be the genotypes giving the smallest number of different phenotypes? specify the phenotypes observed.
Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were
crossed and the resultant F1 hybrids were then crossed to generate the F2 . In the F2 there were a
total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
a) How many i) genes and ii) how many alleles are involved in determining height in this plant?
b) What is the contribution of each dominant allele to the phenotype in cm?
c) What would be the size and genotype of the F1 from a cross between a true-breeding 11 cm plant and a true-breeding 47 cm plant?
d) The F1 from (b) is then crossed to give an F2. What proportion would you expect in the F2 of each extreme phenotype?
e) In a cross between a 29cm plant and a 20cm plant what would be the genotypes giving the smallest number of different phenotypes? specify the phenotypes observed.
Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F_{1} hybrids were then crossed to generate the F_{2} . In the F_{2} there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F_{1} hybrids were then crossed to generate the F_{2} . In the F_{2} there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
a) How many i) genes and ii) how many alleles are involved in determining height in this plant?
Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were
crossed and the resultant F1 hybrids were then crossed to generate the F2 . In the F2 there were a
total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
e) In a cross between a 29cm plant and a 20cm plant what would be the genotypes giving the smallest number of different phenotypes? specify the phenotypes observed.
Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F_{1} hybrids were then crossed to generate the F_{2} . In the F_{2} there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high
In a cross between a 29cm plant and a 20cm plant what would be the genotypes giving the smallest number of different phenotypes? specify the phenotypes observed.
Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F_{1} hybrids were then crossed to generate the F_{2}. In the F_{2} there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
What would be the size and genotype of the F_{1} from a cross between a true-breeding 11 cm plant and a true-breeding 47 cm plant?
1) Two true-breeding varieties of maize, one 11 cm high and the other 47 cm high were crossed and the resultant F_{1} hybrids were then crossed to generate the F_{2} . In the F_{2} there were a total of 13,923 plants with a continuous variation in heights between the two extremes and with only 3 plants as large as 47 cm high and 5 plants of 11 cm high.
a) How many i) genes and ii) how many alleles are involved in determining height in this plant?
b) What is the contribution of each dominant allele to the phenotype in cm?
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