In which phase of mitosis do the sister chromatids separate at their centromeres? telophase metaphase anaphase prophase

What blood vessels carry blood to the heart? away from the heart?

Why may some young adults go through a quarter-life crisis? a. they are entering middle age and feel distressed about growing old. b. they feel insecure about themselves and their future. c. they have been promoted to more secure, better-paying jobs. d. they have developed more stable personal relationships.

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.