Packet 1: Bonus 7
Vitamin D3 supplements can sometimes trigger a syndrome named for this disaccharide because they are derived from lanolin. For 10 points each:
[10m] An immune response to what disaccharide can cause an allergy to red meat after a tick bite?
ANSWER: alpha-gal [or galactose-alpha-1,3-galactose; accept alpha-gal syndrome; prompt on AGS]
[10e] Allergies to alpha-gal are caused by the E isotype of these Y-shaped proteins produced by B cells.
ANSWER: antibody [or antibodies or immunoglobulins; prompt on Ig]
[10h] The mechanism of alpha-gal syndrome was partly discovered due to patients having an anaphylactic reaction to cetuximab, which targets this transmembrane protein in the ErbB family. Erlotinib also targets this protein.
ANSWER: epidermal growth factor receptor [or EGFR; accept HER1 or ErbB1; reject “epidermal growth factor” or “EGF”]
<Case Western, Biology> | I1. Prelims Tiebreaker - NYU A + NYU B + Case Western (Tiebreaker Half 1)
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 1 | 10.00 | 100% | 0% | 0% |