BIOS 3100 Exam 1 questions with answers

BIOS 3100 Exam 1 questions with
|\ |\ |\ |\ |\ |\




answers

virulent - CORRECT ANSWERS ✔✔cause disease or death
|\ |\ |\ |\ |\ |\ |\




Frederick Griffith - CORRECT ANSWERS ✔✔discovered
|\ |\ |\ |\ |\ |\



transformation during an experiment that involved |\ |\ |\ |\ |\ |\



injecting mice with smooth S cells, rough R cells, heat-
|\ |\ |\ |\ |\ |\ |\ |\ |\



killed S cells, and heat-killed S cells with living R cells
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\




Avery, Macleod, McCarthy - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\



✔✔chemically destroyed major categories of chemicals to |\ |\ |\ |\ |\ |\



see which would lose the ability to transform
|\ |\ |\ |\ |\ |\ |\ |\




discovered that DNA is the genetic material |\ |\ |\ |\ |\ |\




Hershey-Chase Experiment - CORRECT ANSWERS ✔✔were |\ |\ |\ |\ |\



skeptical about DNA being genetic material
|\ |\ |\ |\ |\ |\ |\




used a phage (T2) and gave DNA radioisotope labels
|\ |\ |\ |\ |\ |\ |\ |\




phosphate - CORRECT ANSWERS ✔✔ion formed of four O2
|\ |\ |\ |\ |\ |\ |\ |\



atoms attached to phosphorus atom
|\ |\ |\ |\ |\

,deoxyribose - CORRECT ANSWERS ✔✔pentose sugar in |\ |\ |\ |\ |\ |\ |\



the DNA backbone
|\ |\




nitrogenous bases - CORRECT ANSWERS ✔✔A, C, T, G |\ |\ |\ |\ |\ |\ |\ |\




purine - CORRECT ANSWERS ✔✔chemical with double-
|\ |\ |\ |\ |\ |\



ring structure
|\ |\




A, G
|\




pyrimidine - CORRECT ANSWERS ✔✔chemical with single-
|\ |\ |\ |\ |\ |\



ring structure
|\




C, T
|\




nucleotides - CORRECT ANSWERS ✔✔basic building block|\ |\ |\ |\ |\ |\ |\



of nucleic acids--composed of nitrogen base, sugar, and
|\ |\ |\ |\ |\ |\ |\ |\



phosphate group |\




Chargaff's Rules - CORRECT ANSWERS ✔✔T-C = A-G but
|\ |\ |\ |\ |\ |\ |\ |\ |\



A+T doesn't have to equal G+C
|\ |\ |\ |\ |\




Rosalind Franklin - CORRECT ANSWERS ✔✔x-rays fired at
|\ |\ |\ |\ |\ |\ |\ |\



DNA fibers and scatter of rays from fibers is observed on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



photographic film |\

, DNA = long and skinny and has two similar parts that are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\



parallel
helical


Double Helix - CORRECT ANSWERS ✔✔3D structure
|\ |\ |\ |\ |\ |\ |\



composed to two strands of nucleotides |\ |\ |\ |\ |\




Watson and Crick |\ |\




2 nucleotide strands held together by h-bonds between
|\ |\ |\ |\ |\ |\ |\ |\



bases of each strand |\ |\ |\




phosphodiester linkages - CORRECT ANSWERS |\ |\ |\ |\ |\



✔✔connects 5'-carbon atom of 1 deoxyribose to 3'-carbon |\ |\ |\ |\ |\ |\ |\



of another
|\ |\




antiparallel configuration |\




stacking - CORRECT ANSWERS ✔✔_________ of base pairs
|\ |\ |\ |\ |\ |\ |\ |\



adds stability of DNA by excluding water molecules from
|\ |\ |\ |\ |\ |\ |\ |\ |\



the spaces |\




G-C - CORRECT ANSWERS ✔✔3 h-bonds
|\ |\ |\ |\ |\




A-T - CORRECT ANSWERS ✔✔2 h-bonds
|\ |\ |\ |\ |\