Which of the following describes movement of molecules into a cell through active transport? (4 points) Hydrocarbons dissolve in the lipid bilayer and travel down a concentration gradient. Molecules move through passages in the cell membrane that are created by channel proteins. Pockets in the cell membrane form vesicles around extracellular material during endocytosis. Vesicles carrying large molecules fuse with the cell membrane during exocytosis.

the correct option is option d

which fault and or fold did you find most difficult to diagram

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.