Question

6.8 mutation

1. a change in the sequence of bases in dna
2. true or false: mutation always leads to disease.
3. what is the ultimate source of all new genetic material - new alleles - in a species?
4. mutations which occur in cells of the body other than stem cells that lead to gametes.

Explanation:

1. This is the standard definition of a DNA mutation.
2. Many mutations are silent (no effect on phenotype) or beneficial, not all cause disease.
3. Mutations introduce new genetic variation by altering DNA sequences, creating new alleles.
4. These mutations affect only the individual, not offspring, and are defined as somatic mutations.

Answer:

1. Mutation
2. False
3. Mutation
4. Somatic mutations