Although scientists do not know the exact origin of eukaryotic cells, the theory does explain the origin of the mitochondria and chloroplasts.

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

What will happen if two of the base pairs of the stand of the dna are switched