College Biology Quiz 5
Match the Nitrogenous base with the correct type - Cytosine - Adenine - Thymine - Guanine - Uracil
- Cytosine - Pyrimidine - Adenine - Purine - Thymine - Pyrimidine - Guanine - Purine - Uracil - Pyrimidine
What are the forces that will hold together Tertiary and Quaternary structures of proteins?
- Hydrophobic interactions - Disulfide bonds - Ionic/electrostatic interactions - Hydrogen bonds
In trying to determine whether DNA or protein is the genetic material, Hershey and Chase made use of which of the following facts?
DNA contains phosphorus, whereas protein does not.
Suppose you are provided with an actively dividing culture of E. coli bacteria to which radioactive thymine has been added. What would happen if a cell replicates once in the presence of this radioactive base?
DNA in both daughter cells would be radioactive
Which of the following best summarizes the relationship between dehydration reactions and hydrolysis?
Dehydration reactions assemble polymers; hydrolysis reactions break polymers apart.
Which of the following is the strongest evidence that protein structure and function are correlated? - Denatured (unfolded) proteins do not function normally. - Proteins have four distinct levels of structure and many functions. - Proteins function best at certain temperatures - Enzymes tend to be globular in shape
Denatured (unfolded) proteins do not function normally.
What is the name of the bond that joins two amino acids together?
Peptide bond
Hemoglobin is made up of 4 poly peptides, 2 copies of alpha globin and 2 copies of beta globin. This is an example of what level of protein structure?
Quaternary (More than one poly peptide is quaternary)
After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions? - Replication is not conservative - Replication is neither dispersive nor conservative - Replication is semi-conservative - Replication is not dispersive
Replication is not conservative
What is meant by the description "antiparallel" regarding the strands that make up DNA?
The 5' to 3' direction of one strand runs counter to the 5' to 3' direction of the other strand.
DNA is comprised of what monomers?
deoxy-Nucelotides (dNTP)
The sequence of amino acids of a poly peptide is
the primary structure of the poly peptide
The tertiary structure of a protein is the
unique three-dimensional shape of the fully folded polypeptide
