Ectrodactyly also know as" Lobster claw syndrome" is a recessive disorder in humans. If a phenotypically unaffected an affect offspring, what are the following probilities?
A. Both parents are heterozygotes
B. An offspring is a heterozygotes
C. The next three offspring will be phenotypically unaffected
D. Any two out of three offspring will be phenotypically unaffected.
If lacI is binding the lacO, lacZ will be transcribed
Explain independent assortment using a dehybrid Tex cross
Explain independent assortment in a genetic cross between two parents that are heterogynous for plant height and seed shape
In Persian cats, the allele for long hair is dominant. If all the Persian cats are born with
long hair, (A) What are the two possible genotypes of the parents? (B) If the offspring of
the first cross results with 3⁄4 long haired while 1⁄4 are short haired. Can you now determine
the exact parents?
Jeffrey Mitton and his colleagues found three genotypes(R2R2,R2R3 and R3R3)at a locus encoding the enzyme peroxidase in Penderosa pine tree growing at Glacier Lake,Colorado.The observed number of genotypes were:
Genotype
R2R2
R2R3
R3R3
Number observed
135
44
11
Using CHI square test,determine whether the ponderosa pine tree at Glacier Lake conform to be Hardy-Weinberg equilibrium at the peroxidase locus?