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is caused by absence of the gene that codes for the enzyme that breaks down of sugar
Galactosemia
Tay-Sachs is found on chromosome
15
Carries it carries a variety of genes that are necessary for the development of both females and males
X chromosome
states that a random distribution of alleles occurs during gamete formation.
independent assortment
The X-chromosome that stops working is called
Barr body
is characterized by delayed clotting of the blood resulting an excessive bleeding
Hemophilia
Not all traits are determined by two alleles. Some forms of inheritance are determined by more than two alleles
multiple allele
both alleles are expressed in the heterozygous condition
codominance
What is the genotype of hemophilia male ?
XhY
What is the resulting offspring if man with colorblindness crossed with woman that has also colorblindness ?
XbXb XbY
B: dark black b : brown chocolate What is the phenotype of bbEe ?
yellow
for the coat color of the rabbit , if the coat color is Himalayan , what possible genotypes could be ?
ChCh or Chc
When does the process of dosage compensation or X-inactivation happen ?
at the early embryo
C
in Epistasis , dark black color for Labrador retrievers represented by B and brown chocolate for b , if the phenotype is dark black , what possible genotypes are ?
BBEE or BbEE or BbEe
What is the genotype of no baldness female ?
XBXB XBXb
