If both parents are carriers of the defective cf gene, what is the chance that their child will have cystic fibrosis

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided