Question 4 (7 points) (06.07 MC)
Which of the following DNA mutations is likely to have the most negative effect on the protein it specifies?
Oa
Ob
Oc
Od
Asubstitution for one serine codon for a different serine codon
A codon deletion at the end of a sequence
A base pair deletion resulting in a different amino acid
A substitution for one stop codon for another stop codon

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds