LINKAGE, CROSSING-OVER, AND THE GERM PLASM 295 



DO- 

 1-5 ■ 



5 5- 

 7-5- 



I4-0- 

 200- 



275- 



330- 

 360- 



44 5- 



■ YELLOW 

 •WHITE 



-ECHINUS 

 ■RUBY 



00- 

 4-0- 



9-0- 



■CR0SSVEINLES5 140- 



565- 

 57-0' 



650- 



700- 



-CUT 



L- TAN 



■GARNET 



-FORKED 

 ^BAR 



CLEFT 



BOBBED 



22-0- 



29-0- 



•VERMILICN 330- 

 •MINIATURE 



46 5- 



51-0- 

 52-5- 



650- 



700- 

 735- 



85-0- 

 68-0- 



9S-5- 



103-0- 

 105-0- 



-5TAR 



-EXPANDED 



-TRUNCATE 



■STREAM 



• CREAM- B 



-DACHS 

 ■SKI -II 



■BLACK 



CINNABAR 

 ■ PURPLE 



■VESTIGIAL 



•LOBE 

 ■CURVED 



0-0- 



10 0- 



150- 



20-0- 



25-0 x 

 25-5- 

 260 



32-0- 

 34-0- 



385 s 



39 I " 

 40-2' 

 42-0" 

 43-5- 

 450- 

 46-0- 

 46-5' 

 47'<i'/ 

 46-0' 

 51-0- 

 52-0- 



54-0- 

 M-S'' 



583- 

 59 •0 / 



62-0- 

 63-5- 



65-5- 



67-5- 



70-7- 



72-0 - 



75-7- 



-R0UGH0I0 0-0 -T- BENT 



I O^P EYELESS 



■STAR-INTENSIFIER 



-SMUDGE 



-DWARFOID 



, BENIGN-HI 



SEPIA 

 ' HAIRY 



-DIVERGENT 

 -CREAM - III 



yDICHAETE 



-LETHAL-III F 

 ^TILT 

 -SCARLET 

 -ASCUTE 

 -PINK 

 -CURLED 

 ^SMUDGE 

 OPEFORKrD 

 x PEACH 

 -DWARF 

 -WARPED 

 -SPINELESS 

 ^BlTHORAX 



-TWO-BRISTLES 

 V GLASS 



- STRIPE 

 -DELTA 



-HAIRLESS 

 -EBONY 



-SOOTY 

 -WHITE-OCELLI 



-CARDINAL 



Fig. 74.— The chromosome map of Drosophila melanogaster. {After Morgan 

 a>td Bridges.) 



