Quando as membranas plasmáticas são congeladas a temperaturas muito baixas, tendem a fraturar pelo meio da bicamada lipídica quando sujeitas a stresse mecânico. Explique este facto, tendo em conta a estrutura e constituição das membranas.

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."

preservation because he preserves part of the land and preserves means save

explanation:

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