Evolutionary relationships between proteins can be identified through a substitution matrix, which scores the replacement of one amino acid with another amino acid. a large positive score in a substitution matrix indicates that a substitution occurs frequently. select the amino acids that never yield a positive score in a substitution matrix. valine proline arginine glycine cysteine

How do forces between particles in gases compare to forces in the other states of matter? o a. the forces in gases are stronger than forces in solids but weaker than forces in liquids. o b. the forces in gases are weaker than forces in solids but stronger than forces in liquids. o c. the forces in gases are weaker than forces in solids and liquids. o d. the forces in gases are stronger than forces in solids and liquids. submit

Which element is the least metallic between cadmium, silver, zinc, or iron?

In which reaction is precipitation occurring?