Will give 20 points Which of the following scenarios will decrease the genetic variation of a population? (1 point)
an individual works out, increasing their muscle mass
O a population of birds suddenly decrease their frequency of sexual reproduction
a mutation in a chromosome makes it more likely to undergo genetic recombination
a mutation alters the sequence of a gene resulting in a new allele

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.