WorksheetsMixed Short Review
Total questions: 29
Worksheet time: 20mins
Which of the following facts did Hershey and Chase make use of in trying to determine whether DNA or protein is the genetic material?
DNA contains sulfur, whereas protein does not
DNA contains phosphorous, whereas protein does not
DNA contains pyrimidines, whereas protein includes purines
DNA contains purines, whereas protein includes pyrimidines
T Cells and B Cells are what type of agranulocyte?
(a)
Which of the following could cause a frameshift mutation?
Deletions
Insertions or Deletions
Insertions
Mismatches
Which of the following is a non-phagocytic cell?
Dendritic cell
Basophil
T-Cell
Dendritic Cell and Basophil
Which enzyme creates supercoils?
Helicase
Topoisomerase
DNA pol I
RNA pol I
Activation of the C5b can lead to?
Clearance of immune complexes
Neutralized viruses
Enhanced phagocytosis due to opsonization
Cell lysis
From the choices below, which carries the genetic code to the ribosome?
mRNA
rRNA
tRNA
DNA
Which two cells are involved in the inflammatory response and can undergo diapedesis?
(a)
T-Cells are (a) for individual antigens?
Staphylococcus aureus is known to cause pneumonia in patients. Which leukocyte would you probably find in higher numbers if you were infected by it?
Neutrophils
Basophils
Monocytes
All of the Answers
Classical pathway of the complement system is activated by?
Antigens
Antigenic peptides
Antibody-antigen complexes
Antigens bound to cytoplasmic protein
You have a DNA sequence that codes for a protein and is 105 nucleotides long. A frameshift mutation occurs at the 85th base, how many amino acids will be correct in this protein?
105
28
29
None of the Answers
You just ate a huge McDonalds meal, a 10-piece chicken McNuggets and a large fry. Where would the fats be absorbed from this meal?
In blood capillaries in the small intestine because the endothelial cells are loosely packed together
In blood capillaries in the small intestine because the endothelial cells are tightly packed together
In lymphatic capillaries in the small intestine because the endothelial cells are loosely packed together
In lymphatic capillaries in the small intestine because the endothelial cells are tightly packed together
The enzyme that removes RNA primers during DNA replication is?
RNA pol I
RNA pol III
DNA pol I
DNA pol III
Hemoglobin is known to have which type of structure?
Primary
Secondary
Tertiary
Quaternary
Alternative pathway of the complement system is activated by?
Antibody-antigen complexes
Spontaneous cleavage of C3
Antigens
None of the answers
Which cell has nuclei with 2-6 shaped lobes and are also known as polymorphonucleocytes? This cell is also important for dealing with bacteria.
(a)
Conjugation is the process by which one bacterium transfers genetic material to another through direct contact. During conjugation, one bacterium serves as the donor of the genetic material, and the other serves as the recipient. If there was a defect in a protein that codes for pili what effect would it have on conjugation?
Conjugation would occur normally since it is the Fimbriae that is actually involved
Conjugation would occur since pili are not found on bacteria
Conjugation would not occur since the pili cannot grow to be a fimbriae
Conjugation would not occur since the pili is responsible for the transfer of DNA between bacteria
What has the function of protecting against dehydration and shielding pathogenic prokaryotes from attacks by their host's immune system?
Slime Layers
Capsules
Both Slime Layers and Capsules
Neither Slime Layers or Capsules
The complement system is an enzyme cascade that helps defend against infection. There are several pathways of complement activation. Which of the following activation pathways occurs when components of microbial cell surfaces or immunoglobulins cleave small amounts of C3?
Alternative
Classical antibody-dependent
Classical antibody-independent
Lectin
Which statement would be the most consistent with Rosalind Franklin's X-ray data?
Cytosine pairs with adenine
Uracil pairs with adenine
Thymine pairs with guanine
None of the above
Which comparison statement below is true?
DNA helicase is like a Word processor
Topoisomerase is like a wrecking ball
DNA polymerase is like a copy machine
RNA polymerase is like a wreaking ball
Which enzyme is necessary for helicases to continue unwinding DNA?
DNA pol I
DNA pol III
Topoisomerase
Primase
Which segments of mRNA are cut and discarded before it leaves the nucleus?
Exons
Genes
Introns
Amino Acids
Below is the following sequence of mRNA nucleotides, using the genetic code table, what would the amino acid sequence be?
(a)
When does mRNA dissociate from a fixed ribosome in targeting proteins in the ER?
When the signal peptide is cleaved by an enzyme
When the SRP binds to an SRP receptor protein
When the polypeptide assumes its final folding
None of the Above
For isoleucine to bind to a molecule of tRNA, what would need to occur?
AMP would need to be catalyzed for isoleucine to bind to isoleucyl-tRNA
The anticodon on tRNA would need to be complementary to the isoleucine codon on mRNA
4 Phosphate molecules would need to be removed from ATP
Two of the above answers are correct
Which blood cell(s) is/are associated with diapedesis?
Monocyte
Basophil
Neutrophil
Lymphocyte
You just became infected with a common cold (rhinovirus), which type(s) of immunity response(s) would be activated?
Innate
Adaptive
Nonspecific
Two of the above answers are correct
