Crossing over and fertilization both result in which of the following A. transcription

B. increase in genetic variation

C. an increase in the chromosome number

D. horizontal gene transfer

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature

C) they are specialized meaning they are designed to do different things