Answer:
1 new DNA molecule, 1 old molecule is conserved
Answer:
Red blood cells are formed in the red bone marrow of bones
Answer:
The sequence of amino acids. - The three-dimensional shape of the folded protein. - If the coding sequence has a mutation that leads to a change in the amino acid sequence, the protein may have a different three-dimensional shape, reducing its activity.
Explanation:
Cartilaginous fish do not contain any bones - their skeleton is made up of cartilage.
Answer:
it is the thymus
Explanation:
this is where the t cells and b cells are made
