Answer:
Your heart is a single organ, but it acts as a double pump. The first pump carries oxygen-poor blood to your lungs, where it unloads carbon dioxide and picks up oxygen. ... The second pump delivers oxygen-rich blood to every part of your body. Blood needing more oxygen is sent back to the heart to begin the cycle again.
Explanation:
The genes, which are part of DNA, contain the<u> genetic information</u> inherited from the parents determine the traits of an organism.
The ‘complete set of all the genes and the DNA’ is called the genome which stores the entire set of information of how an organism is structured and maintained.
The pattern of dominant and/or recessive traits and the genetic variations are determined by the allelles.
Explanation:
The genetic codes in the genes represent the particular amino acid codes and their linkages specific to particular protein. The amino acids link together to form long polypeptide chains of protein molecules.
These proteins determine various traits through various roles like:
Messenger proteins: Hormones like insulin, estrogen etc., control and coordinate various functions of the body
Pigments: Like melanin determines the color of the hair, skin, eyes.
Structural protein: Like keratin gives structure of hair, nails; myosin determines muscle structure
Antibodies: Determine the immunity of a person
Ion channel proteins, messenger proteins, structural proteins, receptor proteins etc.: Determine various physiological traits.
Stem cells. Or more specifically, embryonic stem cells.
