What is the best description of the chromosomes by the end of metaphase of mitosis?

The chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei.

The chromosomes have coiled and become more compact.

The chromosomes separate at the centromere and begin to move apart.

The chromosome pairs collect in a line across the middle of the cell.

Photosynthesis converts solar energy into what type of energy?

Wich organism obtains its energy from dead or decaying matter

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.