Final Exam BIO 150 (Ch. 16,17,18,20)Correct 100%(GRADED A)

Uncorrected mistake during meiosis will lead to: - ANSWER production of gametes with mutated genes What molecule holds instructions for the synthesis of protein and copies itself for the next generation of cells: - ANSWER DNA DNA's sugar-phosphate backbones are joined with - ANSWER covalent bonds Strands of DNA are joined by - ANSWER hydrogen bonds If you were watching a cell undergoing a doubling of the dna in its nucleus, you would be observing - ANSWER replication The enzyme that unwinds DNA is - ANSWER helicase The enzyme that adds nucleotides to form new strands of DNA is - ANSWER DNA polymerase Mutations may be caused by - ANSWER errors in prokaryotic replication, exposure to radiation, exposure to chemicals, errors in eukaryotic replication A discrete package of DNA and associated proteins in eukaryotic is a - ANSWER Chromosome A nucleosome consist of - ANSWER A stretch of DNA and histones Eukaryotic chromosomes become visible with a light microscope before cell division because - ANSWER they become more tightly wound The complementary strand of DNA to a sequence of 5` ATGTGCC 3` will read - ANSWER 3` TACACGG 5` When DNA replicates - ANSWER one strand of the original DNA ends up in each of the new DNA molecules. DNA replication occurs during which phase of the cell cycle - ANSWER during S phase Each newly replicated molecule of DNA contains one conserved strand from the original DNA molecule. (T/F) - ANSWER True