In clover plants, the pattern on the leaves is determined by a single gene with multiple alleles that arerelated in a dominance series. The gene is not pleiotropic. Seven different alleles of this gene are known;an allele that determines the absence of a pattern isrecessive to the other six alleles, each of which produces a different pattern. All heterozygous combinations of alleles show complete dominance.a. How many different kinds of leaf patterns (including the absence of a pattern) are possible in a population of clover plants in which all seven allelesare represented?b. What is the largest number of different genotypesthat could be associated with any one phenotype?Is there any phenotype that could be represented byonly a single genotype?c. In a particular field, you find that the large majority of clover plants lack a pattern on their leaves,even though you can identify a few plants representative of all possible pattern types. Explain thisfinding.
In clover plants, the pattern on the leaves is determined by a single gene with multiple alleles that are
related in a dominance series. The gene is not pleiotropic. Seven different alleles of this gene are known;an allele that determines the absence of a pattern is
recessive to the other six alleles, each of which produces a different pattern. All heterozygous combinations of alleles show complete dominance.
a. How many different kinds of leaf patterns (including the absence of a pattern) are possible in a population of clover plants in which all seven alleles
are represented?
b. What is the largest number of different genotypes
that could be associated with any one
Is there any phenotype that could be represented by
only a single genotype?
c. In a particular field, you find that the large majority of clover plants lack a pattern on their leaves,
even though you can identify a few plants representative of all possible pattern types. Explain this
finding.
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