Respuesta :

Answer:

Variants can affect one or more DNA building blocks (nucleotides) in a gene. Gene variants can be inherited from a parent or occur during a person's lifetime: ... When an egg and a sperm cell unite, the resulting fertilized egg cell contains DNA from both parents

Explanation:

Answer:

Variants can affect one or more DNA building blocks (nucleotides) in a gene. Gene variants can be inherited from a parent or occur during a person's lifetime: ... When an egg and a sperm cell unite, the resulting fertilized egg cell contains DNA from both parents

Explanation: