What is the best description of sexual reproduction in plants?

a. a process in which gametes fuse to form a gametophyte
b. a process in which gametes fuse to form zygote
c. a process in which rhizomes and runners form
d. a process in which spores fuse to form a sporophyte

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.