Which following occurs after a codon and anticodon form hydrogen bonds?

1. rrna and protein combine to form a ribosome.
2. a three-base sequence binds to a peptide.
3. a dehydration reaction forms a peptide bond.
4. trna carrying an amino acid binds to the ribosome.

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above