A) ribosomes, Golgi apparatus, endoplasmic reticulum, and lysosomes. B) vitamins and minerals. C) carbon, hydrogen, nitrogen, oxygen, and phosphorus. D) carbohydrates, proteins, lipids, and nucleic acids. E) eukaryotes, prokaryotes, and archaea.
A) Somatic cells are diploid, meaning that they have two copies of the human genome. B) Somatic cells are haploid, meaning that they have one copy of the human genome. C) Sperm and egg cells are diploid, meaning that they have two copies of the human genome. D) Stem cells are haploid, meaning that they have one copy of the human genome. E) Nerve and muscle cells are haploid, but other differentiated cells are diploid.
In a DNA molecule,the sugar-phosphate backbone is the same in everyone,but the base sequence is different in everyone.A plasma membrane is similar conceptually to DNA in that
A) the lipid bilayer is the same in everyone, but the nature and pattern of the molecules embedded in it differ. B) the pattern of embedded proteins in the plasma membrane is the same in everyone, but the lipid bilayer differs. C) the lipid bilayer and pattern of embedded proteins differ in everyone. D) the lipid bilayer is the same in everyone, but some people have the embedded proteins sticking out of the outer face of the membrane, and others have the proteins extending inward. E) it encodes information in a sequence of molecules.