. Considering the yellow and green pea color phenotypes studied by Gregor Mendel:a. What is the biochemical function of the proteinthat is specified by the gene responsible for thepea color phenotype?b. A null allele of a gene is an allele that does notspecify any of the biochemical function that thegene normally provides. Of the two alleles Y and y,which is more likely to be a null allele?c. In terms of the underlying biochemistry, why is theY allele dominant to the y allele?d. Why are peas that are yy homozygotes green?e. The amount of the protein specified by a gene isroughly proportional to the number of functionalcopies of the gene carried by a cell or individual.What do the phenotypes of YY homozygotes, Yyheterozygotes, and yy homozygotes tell us aboutthe amount of the Sgr enzyme (the product of thepea color gene) needed to produce a yellow color?
. Considering the yellow and green pea color
a. What is the biochemical function of the protein
that is specified by the gene responsible for the
pea color phenotype?
b. A null allele of a gene is an allele that does not
specify any of the biochemical function that the
gene normally provides. Of the two alleles Y and y,
which is more likely to be a null allele?
c. In terms of the underlying biochemistry, why is the
Y allele dominant to the y allele?
d. Why are peas that are yy homozygotes green?
e. The amount of the protein specified by a gene is
roughly proportional to the number of functional
copies of the gene carried by a cell or individual.
What do the phenotypes of YY homozygotes, Yy
heterozygotes, and yy homozygotes tell us about
the amount of the Sgr enzyme (the product of the
pea color gene) needed to produce a yellow color?
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