Round 10: Tossup 7

One of these molecules is chemically linked to a cytotoxic payload in an ADC, a form of targeted cancer therapy. HAT medium is used to incubate hybridomas in a technique for producing large amounts of one type of these molecules. These molecules’ hinge regions connect their Fab (“F-A-B”) and Fc (“F-C”) regions. The diversity of certain receptors and these molecules is facilitated through V(D)J recombination. A type of these proteins that only recognizes a single target is called “monoclonal.” (10[1])These proteins (10[1])can class-switch (10[2])between their five isotypes and consist of two heavy chains and two light chains. For 10 points, B cells produce what Y-shaped (10[1])proteins that bind to antigens? ■END■

ANSWER: antibodies [or antibody; or immunoglobulins; accept monoclonal antibodies or mAbs; accept Igs; accept antibody-drug conjugates] (The receptors in the fourth line are T-cell receptors.)
<Editors, Biology> | Packet K
= Average correct buzzpoint

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Buzzes


Summary

TournamentEditionMatchHeardConv. %Neg %Avg. Buzz
Northern CaliforniaMain1100%100%94.00
Southern CaliforniaMain786%14%61.67
Eastern Canada (1)Main5100%0%68.60
Eastern Canada (2)Main989%11%69.75
FloridaMain1100%0%94.00
Great LakesMain12100%33%79.00
Lower Mid-AtlanticMain989%11%66.38
Upper Mid-AtlanticMain12100%8%71.75
MidwestMain9100%0%68.22
NorthMain1100%0%80.00
NortheastMain1292%8%81.73
PacificMain9100%11%81.00
South CentralMain4100%0%70.75
SoutheastMain13100%15%94.00
Upstate NYMain5100%0%83.20
UK (North)UK5100%0%87.20
UK (South)UK8100%0%59.00