Which describes how mrna is used by a cell? a. it is used to replicate dna for meiosis. b. it is used to stop toxins from entering the nucleus. c. it is used to prevent mutations in dna. d. it is used to transfer information to the ribosome.

Someone me with this: a mineral' is determined by its actomic structure.

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse