Two sister chromatids are joined at the centromere prior to meiosis. which statement is correct?

Which of these is not a function of some membrane proteins ? a. allowing polar molecules to enter the cell b. recognizing other types of cells c. receiving messeges from other cells b. carrying messages to oher cells

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel