How is codominance expressed? how is codominance expressed? more than two alleles of a gene are present in a population. an intermediate phenotype is produced in the heterozygote. one allele is dominant and masks the other in the phenotype of the heterozygote. both alleles are expressed in the phenotype of the heterozygote.

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

Explain how light energy is turned into chemical energy? ! due tomorrow!

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?