The semilunar valves prevent backflow of blood into the g

Identify the area on the image where the force of attraction is the strongest.

Which correctly describes crossing over ?

What is the definition of genes? a. small rna chains that transfer a specific amino acid to a growing polypeptide chain at the ribosomal site of protein synthesis during translation b. sections of dna a cell copies as rna strands to make specific proteins during transcription and translation c. molecules of rna encoding a chemical blueprint for a protein product