Biology Chapter 11 McGraw Hill Q&A

Albinism

________ is a recessive genetic disorder resulting in the absence of the skin pigment melanin in hair and eyes.

Chloride ions

________ are not absorbed into the cells of a person with cystic fibrosis, causing thick mucus to block respiratory pathways in the lungs.

death rate

The ________ due to malaria is lower where the sickle- cell trait is higher.

Hemophilia

________ is a recessive sex- linked disorder, characterized by delayed clotting of the blood.

Albinism

________ is a recessive genetic disorder resulting in the absence of the skin pigment melanin in hair and eyes.

individual

A(n) ________ who is heterozygous for a recessive disorder is called a carrier.

absence of pigment

The ________ in eyes can cause problems with vision.

pedigree

In a(n) ________, males are represented by squares, and females are represented by circles.

hair loss

The allele for baldness causes ________ that follows a typical pattern called male- pattern baldness.

Galactosemia

________ is a recessive genetic disorder characterized by the inability of the body to digest galactose.

recessive genetic disorder

A person with a(n) ________ will have a genotype for that trait.

Males

________ are affected by recessive X- linked traits more often than are females because.

Telomeres

________ are the sight of protein synthesis in a cell.

Tay Sachs disease

________ is a recessive genetic disorder caused by the absence of the enzymes responsible for breaking down fatty acids called gangliosides.

Cystic fibrosis

________ is a recessive genetic disorder that affects the mucus- producing glands, digestive enzymes, and sweat glands.

blood group

The ABO ________ has three forms of alleles: IA, IB, and i.

Nondisjunction

________ can result in a set of three chromosomes called trisomy.

Galactose

________ must be broken down into glucose by an enzyme named GALT.

syndrome

Down ________ is the result of an extra chromosome 21.

inheritance pattern

True or false: Once a(n) ________ is determined, the genotypes of the individuals can largely be resolved through pedigree analysis.

Traits

________ controlled by genes located on the X chromosome are called sex- linked ________.

chromosome

A(n) ________ that is not a sex ________ is called an autosome.

pale skin

A person with albinism has white hair, very ________, and pink pupils.

Achondroplasia

________ is the most common form of dwarfism.

Tay Sachs disease

In a person affected by ________, the gangliosides accumulate in the brain, inflating brain nerve cells and causing mental deterioration.

Telomeres

________ serve a protective function for the structure of the chromosome.

Nondisjunction

________ can result in extra copies of a certain chromosome or only one copy of a particular chromosome in the offspring.

True or false

Once an inheritance pattern is determined, the genotypes of the individuals can largely be resolved through pedigree analysis

In rabbits, four alleles code for coat color

C, cch, ch, and c. Select the statements that are true about these four alleles

The ABO blood group has three forms of alleles

IA, IB, and i