AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

GENE MUTATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mutations in ____ ____ are heritable, meaning they can be passed from parent to offspring.
A
Body cells
B
Sex cells (gametes)
C
Hormone cells
D
Transcription proteins
Explanation: 

Detailed explanation-1: -You can inherit germline genetic mutations. In this type of mutation, the DNA change happens in reproductive cells (egg or sperm). The sperm and egg pass from parents to their children, so the mutation is inherited. You can’t inherit somatic mutations because they occur randomly in cells that aren’t the sperm or egg.

Detailed explanation-2: -If a parent carries a gene mutation in their egg or sperm, it can pass to their child. These hereditary (or inherited) mutations are in almost every cell of the person’s body throughout their life. Hereditary mutations include cystic fibrosis, hemophilia, and sickle cell disease.

Detailed explanation-3: -The only mutations that matter to large-scale evolution are those that can be passed on to offspring. These occur in reproductive cells like eggs and sperm and are called germ line mutations.

Detailed explanation-4: -Hereditary mutations are inherited from a parent and are present throughout a person’s life in virtually every cell in the body. These mutations are also called germline mutations because they are present in the parent’s egg or sperm cells, which are also called germ cells.

Detailed explanation-5: -If an acquired mutation occurs in an egg or sperm cell, it can be passed down to the individual’s offspring. Once an acquired mutation is passed down, it is a hereditary mutation. Acquired mutations are not passed down if they occur in the somatic cells, meaning body cells other than sperm cells and egg cells.

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