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Rabbits can come in an allelic series where brown > himilayan > chinchilla > albino, where...

Rabbits can come in an allelic series where brown > himilayan > chinchilla > albino, where > means dominant over. They also can come in long (recessive) and short fur. You wish to obtain rabbit babies that are albino with long fur. Draw the allelic cross

Solutions

Expert Solution

The allele for hair length is

SS ( HOMOZYGOUS) Ss( heterozygous) = short  hair

ss( homozygous ) = long hair

SHORT HAIR IS DOMINANT OVER LONG HAIR

There are multiple allele for rabbit fur Colour : that is brown - CC DOMINANT OVER ALL ALLELE

HIMALAYAN = CH DOMINANT OVER CHINCHILLA AND ALBINO

CHINCHILLA = CCH DOMINANT OVER ALBINO

ALBINO= cc

TO OBTAIN RABBIT WITH ALBINO AND LONG FUR WILL HAVE GENOTYPE ccss indicating both parent must have one c and s allele

Suppose the parents genotype are CcSs X CcSs

PARENT PHENOTYPE BROWN SMALL HAIR BROWN SMALL HAIR

PARENT  GAMETE CS,Cs, cS.cs CS,Cs, cS.cs

MALE
CS Cs cS cs
FEMALE CS CCSS (BROWN SHORT) CCSs  (BROWN SHORT) CcSS (BROWN SHORT CcSs(BROWN SHORT)
Cs CCSs (BROWN SHORT) CCss (BROWN LONG) CcSs  (BROWN SHORT) Ccss  (BROWN LONG)
cS CcSS (BROWN SHORT) CcSs (BROWN SHORT ccSS (BLACK SHORT) ccSs BLACK SHORT)
cs CcSs (BROWN SHORT Ccss   (BROWN LONG) ccSs ( BLACK SHORT) (BROWN SHORT)

NOTE : BLACK ALBINO CAN ALSO BE OBTAIN FROM CROSSING ANY OF  BOTH  PARENT WITH HAVING EITHER HETEROZYGOUS ALLELE FOR DOMINANT PHENOTYPE OR HOMOZYGOUS RECESSIVE PHENOTYPE WHICH INCLUDE FOLLOWING

CCHc Ss (CHINCHILLA SHORT HAIR )

Chc Ss (HIMALAYAN SHORT HAIR)

Cc Ss ( BROWN SHORT HAIR )

cc Ss ( BLACK SHORT HAIR )

    CCHcss (CHINCHILLA LONG HAIR

Chc ss    (HIMALAYAN LONG HAIR )

   Cc ss (BROWN LONG HAIR )

cc Ss    ( BLACK LONG HAIR )

gladiator answered 2 years ago
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