An and Sturtevant
0
0.0 Aristaless (no bristles on antenna)
1.3 Star eye
How oft...
Biology, 12.04.2020 02:59 grettelyesenia
An and Sturtevant
0
0.0 Aristaless (no bristles on antenna)
1.3 Star eye
How often two genes cross-over
can tell us how far apart the
genes are from each other. This is
called recombinant frequency (rf).
These calculations allow us to
create a gene map like this one.
31.0 Dachs (short legs) –
IN
LES
LATO
EY
IN
51.0 Reduced bristles
/
LES
-
Circle in red the two genes that
are closest together.
+
OU
575
Underline in green the pair of
genes that are furthest apart.
57.5 Cinnabar eye
67.0 Vestigial (small) wing -
99.2 Arc (bent wings)
107.0 Speck body
S
L 110
Genes that are closer together on
the chromosome are more likely
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