In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed heterozygous fly (Rr) mates with a sepia-eyed h0m0zygous fly (rr), what are the possible genotypes of their offspring? (Hint: You may want to complete a Punnett square.) Rr only
RR, Rr, and rr
Rr and rr
RR and Rr

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from

Which of the following is not a potential result of deforestation?

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.