Answer:
Genes are segments of deoxyribonucleic acid (DNA) that code for a specific protein that works in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are found in the cell nucleus.
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Answer:
the life chain of a particular animal
Answer: . A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses
Explanation: