In humans, cystic fibrosis is a recessive genetic disorder that results in mucus clogging major organs. if both parents are genetically heterozygous for cystic fibrosis, then what are their chances of having a child with the disease? a) 25% b) 50% c) 75% d) 100%

Provide one reason why mitosis occurs.

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis