Scientists can learn all of the following by studying fossils EXCEPT: Question 2 options:

How life forms have changed over time

How the environment has changed over time

How the surrounding rock layers have changed over time

How the Erath's surface has changed over time

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

How does the study of genetic disorders such as pku biologists understand normal alleles?

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.