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DNA
Question | Answer |
---|---|
Each new copy of a replicated chromosome | sister chromatid |
Long strands of DNA (chromosomes)are wound around proteins called | histones |
region where chromatids are connected until anaphase | centromere |
compare daughter cell formed in mitosis to the parental cell as they appear in G1 | same number of chromosomes and same amount of DNA |
replicated chromosome | chromatid |
What was the significance of Fred Griffith's experiment with 2 strains of pneumonia pathogens? | harmless bacteria can be transformed by absorbing DNA from another bacteria source |
Viruses that attack bacteria are called | bacteriophages |
What was the significance of the Hershey-Chase experiment with radioactive P32 and S35? | It showed the inheritance of radioactive P and S in host bacteria for several generations |
What are the elements of nucleic acids? | C, H, O, N, P |
What the monomers (building blocks) of the nucleic acids? | nucleotides |
What are the components of a nucleotide? | 5-Carbon sugars, a phosphate group, nitrogenous bases |
What type of bonds are between the nucleotides? | hydrogen |
According to Chargaff's rule; what are the bonding rules? | adenine to thymine cytosine to guanine |
Nitrogen bases with double (2) rings are called | purines |
Nirogen bases with a single (1) ring are called | pyrimidines |
True or False; double rings always bond to single ring nucleotides. | True |