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Download PDF - Howard Hughes Medical Institute

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chronicle<br />

Vikas Gupta / Poss Lab<br />

38 scIENCE EDUCATION<br />

Teaching Genomics, Plainly<br />

40 INSTITUTE NEWS<br />

HHMI Awards $50 Million to Colleges / Fifty<br />

International Students Get Support from HHMI /<br />

<strong>Medical</strong> Fellows Get a Chance to Try Research /<br />

2012 Holiday Lectures on Science—Changing<br />

Planet: Past, Present, Future<br />

42 LAB BOOK<br />

The Yin and Yang of Plant Defense / Like a Chinese<br />

Finger Trap / Wiring the Brain<br />

45 ASK A SCIENTIST<br />

Why do we develop distastes for certain foods?<br />

46 NOTA BENE<br />

Fourteen Elected to National Academy of Sciences /<br />

Quake Receives Lemelson-MIT Prize / Horwich Awarded<br />

Shaw Prize<br />

A tiny zebrafish has just hatched from its egg. Under a microscope,<br />

the slim, translucent fish lies motionless on its side, too<br />

young even to swim. The only movement is its beating heart.<br />

At this early stage of life, the single ventricle of the fish’s heart<br />

is a hollow tube composed of only about 120 muscle cells.<br />

Within three months, those cells, called cardiomyocytes, will<br />

replicate, morph, and spread to form a full-sized adult heart.<br />

HHMI early career scientist Kenneth Poss recently visualized<br />

this dramatic transformation using a colorful new technique<br />

to label heart cells like the ones seen here. To read more about<br />

this research, visit www.hhmi.org/bulletin/fall2012.<br />

Fall 2o12 | h h m i b u l l e t i n<br />

37

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