Which of the following white blood cells plays a key role in the innate immune system, is typically one of the first responders to infection, and has primary and secondary granules in its cytoplasm:
Monoclonal antibodies can be described as:
Monoclonal antibodies can be described as:
Which of the following describes innate immunity: (select al…
Which of the following describes innate immunity: (select all that apply)
The immunogenicity of an antigen is influenced by its:
The immunogenicity of an antigen is influenced by its:
During the MHC I Peptide Presentation Pathway, TAP1 and TAP2…
During the MHC I Peptide Presentation Pathway, TAP1 and TAP2 transport antigenic peptides into which of the following within the cell:
What are the two small sesamoid bones located behind the con…
What are the two small sesamoid bones located behind the condyles of the femur?
Anterior blood supply to the head of pancreas is derived fro…
Anterior blood supply to the head of pancreas is derived from branches of the ________?
What part of pancreas lies between the head and and body an…
What part of pancreas lies between the head and and body and is anterior to the SMV?
You are studying a microRNA, miRNA1, and decide to PCR ampli…
You are studying a microRNA, miRNA1, and decide to PCR amplify its entire coding region and add it to the multiple cloning site (MCS) of the plasmid shown below (the intended “insert”). miRNA1 is 22 nucleotides in length. After attempting your cloning reaction, you transform the plasmid into bacteria and grow the bacteria with both X-Gal and IPTG on their growth medium. Select all correct results you should expect when attempting this cloning procedure. -The MCS is a cluster of restriction endonuclease cut sites used to add DNA to the plasmid via restriction-ligation cloning). -“lacZ” indicates a functional lacZ gene with the normal promoter and operator from the lac operon. This gene is functional with a small MCS added to it in-frame (as shown above), but any frameshift OR the addition of >200 bp of DNA within the MCS abolishes lacZ function. -X-Gal is a substrate of the lacZ gene product that turns bacteria from colorless/white to blue when it is metabolized. -IPTG is an allolactose analog that prevents LacI from binding the lac operator. -Ampicillin is a commonly used antibiotic that kills all bacteria that do not express an AmpR resistance gene (which is also found on the plasmid).
True or false: all species of animals with male and female s…
True or false: all species of animals with male and female sexes undergo dosage compensation of a sex chromosome by inactivating one copy of a chromosome in females (usually the X chromosome).