This change in chromosome number is the result of B. Fertilization. Both of the individual gametes from the male and female combine together to produce a zygote or developing offspring that is diploid in most cases, and possess both sets of genetic content or chromosomal information, one from each parent.
Bases wich combine in groups of two to create base pairs
Ophthalmology is the specialty dealing with disorders and injuries of the eye... And ophthalmologist is the specialist responsible. Do not confuse with a optometrist. An optometrist only does basic diagnosis and fitting for eye ware.
Answer: C. By changing the genetic makeup of the crops.
Explanation: It's correct because this was one of my questions for Study Island and I put in this answer which was right!