What type of mutation occurs when one base replaces another base in a dna codon?

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups