A change in the base subunit sequence during DNA Replication can result in a variation within that organism, also called a mutation.
Answer:
'Gametes are formed through a process of cell division called meiosis. This two-step division process produces four haploid daughter cells. Haploid cells contain only one set of chromosomes. When the haploid male and female gametes unite in a process called fertilization, they form what is called a zygote.'
Explanation:
Patella is the word you are looking for
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