What is an allele? a dna sequence different versions of a gene a hairstyle a physical trait?

Glucose is broken down in different ways, both in the presence and in the absence of oxygen. using the table for reference, what major products are formed in each reaction set?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Based on the data in the graphs do you think pepsin and trypsin are found in the same part of the body? explain your answer.