D: All the variables are controlled except one.
Red blood cells and white blood cells. Muscle cells and some others
Answer: Restriction enzymes are DNA-cutting enzymes. ... DNA ligase is a DNA-joining enzyme. If two pieces of DNA have matching ends, ligase can link them to form a single, unbroken molecule of DNA. In DNA cloning, restriction enzymes and DNA ligase are used to insert genes and other pieces of DNA into plasmids.
Answer:
I think this is 20...... Brainliest?
Explanation:
Each group of three nucleotides encodes one amino acid. Since there are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases). The adaptor molecule for translation is tRNA