4. Which of the following statements is TRUE? a. Lysosomes are believed to have originated from the engulfment of bacteria specialized for digestion. b. The nuclear membrane is thought to have arisen from the plasma membrane invaginating around the DNA. c. Because bacteria do not have mitochondria, they cannot produce ATP in a membrane-dependent fashion. d. Chloroplasts and mitochondria share their DNA.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called