What type of genetic mutation has no effect on the phenotype of the organism?
a. point mutation
b. frameshift mutation
c. chromosomal mutation
d. silent mutation

Substitution: base is replaced by one of the other

three bases

• Deletion: block of one or more DNA pairs is lost

• Insertion: block of one or more DNA pairs is added

• Inversion: 180˚ rotation of piece of DNA

• Reciprocal translocation: parts of nonhomologous

chromosomes change places

• Chromosomal rearrangements: affect many genes at

one time

Explanation:

123/33

explanation:

because i added numbers

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.