Biology Ch. 11 Section 1
✅✅
Individuals with albinism have very pale skin, ____________________________ hair, and
pink irises. - -white
✅✅
Albinism is caused by altered genes, resulting in the absence of the skin pigment
____________________________ in hair and eyes. - -melanin
✅✅
A recessive trait is expressed when the individual is ____________________________ for
the trait. - -homozygous recessive
✅✅
Those with at least one ____________________________ will not express the recessive
disorder. - -dominant allele
✅✅
An individual who is heterozygous for a recessive disorder is called a
____________________________. - -carrier
A disorder that affects the ____________________________ glands,
✅✅
____________________________ enzymes, and sweat glands is called
____________________________. - -mucus-producing, digestive, cystic fibrosis
✅✅
____________________________ are not properly transported out of the cells of a person
with cystic fibrosis. - -chloride ions
✅✅
Cystic fibrosis causes ____________________________ that clogs ducts in the pancreas,
interupts digestion, and blocks respiratory pathways in the lungs. - -mucus excretion
____________________________ is caused by the absence of the
✅✅
____________________________ responsible for breaking down fatty acids called
gangliosides. - -Tay-Sachs, enzymes
✅✅
Gangliosides accumulate in the brain, inflating brain nerve cells and causing
____________________________. - -deterioration
✅✅-galactose
Recessive genetic disorder characterized by the inability of the body to digest
____________________________. The inability to digest milk products. -
✅✅
Not all genetic disorders are caused by recessive inheritance. Some are caused by
____________________________ alleles. - -dominant
✅✅
____________________________ affects the nervous system, causing gradual loss of
____________________________ function. - -Huntington's Disease, brain
✅✅
Huntington's disease occurs in 1 out of every ____________________________ people in
the U.S. - -10,000
✅✅
Individuals with albinism have very pale skin, ____________________________ hair, and
pink irises. - -white
✅✅
Albinism is caused by altered genes, resulting in the absence of the skin pigment
____________________________ in hair and eyes. - -melanin
✅✅
A recessive trait is expressed when the individual is ____________________________ for
the trait. - -homozygous recessive
✅✅
Those with at least one ____________________________ will not express the recessive
disorder. - -dominant allele
✅✅
An individual who is heterozygous for a recessive disorder is called a
____________________________. - -carrier
A disorder that affects the ____________________________ glands,
✅✅
____________________________ enzymes, and sweat glands is called
____________________________. - -mucus-producing, digestive, cystic fibrosis
✅✅
____________________________ are not properly transported out of the cells of a person
with cystic fibrosis. - -chloride ions
✅✅
Cystic fibrosis causes ____________________________ that clogs ducts in the pancreas,
interupts digestion, and blocks respiratory pathways in the lungs. - -mucus excretion
____________________________ is caused by the absence of the
✅✅
____________________________ responsible for breaking down fatty acids called
gangliosides. - -Tay-Sachs, enzymes
✅✅
Gangliosides accumulate in the brain, inflating brain nerve cells and causing
____________________________. - -deterioration
✅✅-galactose
Recessive genetic disorder characterized by the inability of the body to digest
____________________________. The inability to digest milk products. -
✅✅
Not all genetic disorders are caused by recessive inheritance. Some are caused by
____________________________ alleles. - -dominant
✅✅
____________________________ affects the nervous system, causing gradual loss of
____________________________ function. - -Huntington's Disease, brain
✅✅
Huntington's disease occurs in 1 out of every ____________________________ people in
the U.S. - -10,000
