Biology: Chapter 13
Terms in this set (27)
Prospective parents consult a counselor who determines the genotype of each and whether an unborn child will have a genetic disorder.
A visual display of chromosomes arranged by size, shape, and banding pattern.
A procedure for obtaining a sample of amniotic fluid from the uterus of a pregnant woman. A long needle is used.
Chorionic villus sampling (CVS)
A procedure for obtaining chorionic cells in the region where the placenta will develop. A suction tube is used.
When a single break causes a chromosome to lose an end piece, or when two simultaneous breaks lead to the loss of an internal chromosome segment.
A chromosome segment is repeated, so that the individual has more than two alleles for certain traits.
Know to occur in chromosome 15. Inversion means that a segment joins in the direction opposite from normal.
The exchange of chromosome segments between two nonhomologous chromosomes.
Occurs when a segment of a chromosome is turned 180 degrees. May lead to an increased occurrence of abnormal chromosomes during sexual reproduction.
A chart of a family's history with regard to a particular genetic trait.
Some traits are carried on autosomes nonsex chromosome.
Other traits are carried on the sex chromosomes.
A relatively harmless disorder that results from an accumulation of methemoglobin, an alternative form of hemoglobin, in the blood.
An autosomal recessive disorder that occurs among all ethnic groups, but it is the most common lethal genetic disorder among Caucasians in the United States.
Is a rare genetic disorder that follows an autosomal recessive inheritance pattern. People with alkaptonuria lack a functional copy of the homogentisate oxygenase (HGD) gene found on chromosome 3.
Sickle Cell Disease
An autosomal recessive disorder in which red blood cells are not biconcave disks like normal red blood cells, but are irregular in shape.
an autosomal dominant disorder that is caused by a defect in an elastic connective tissue protein called fibrillin. This protein is normally abundant in the lens of the eye; the bones of limbs, fingers, and ribs; and the wall of the aorta. The affected person often has dislocated lens, tall stature, long limbs and fingers, and a caved-in chest.
Is a dominant neurological disorder that leads to progressive degeneration of neurons in the brain. This disease is caused by a single mutated copy of the gene for the protein called huntingtin.
X-Linked Recessive Disorders
Are caused by mutated alleles on the X chromosome
A son inherits an X-linked recessive condition from his mother.
Is a common X-linked recessive disorder. About 8% of Caucasian men have red-green color blindness.
Duchenne muscular dystrophy
X-linked recessive disorder characterized by wasting away of the muscles. The absence of the protein, now called dystrophin, is the cause of this disorder
Abnormality in the sequence of a base at the particular location on a chromosome signifying a disorder.
Thousands of different single-stranded DNA fragments arranged in a array (grid) on a glass slide; used to detect and measure gene expression.
An ultrasound probe scans the mother's abdomen, and a transducer transmits high-frequency sound waves, which are transformed into a picture on a video screen. This picture shows the fetus inside the uterus.
Is the insertion of genetic material into human cells of the treatment of a disorder.
Ex Vivo Gene Therapy
Gene therapy in which infected tissue is removed from an organism, injected with normal genes, and then returned to the organism. The normal genes divide, producing normal genes instead of infected ones.
In Vivo Gene Therapy
Gene therapy in which normal genes are injected directly into an organism for growth.
YOU MIGHT ALSO LIKE...
ASCP MLT/MLS Certification Exam (BOC) Preparation
Chapter 29 Inheritance
OTHER SETS BY THIS CREATOR
English Lit Week 4 Elements of Fiction
English Lit Week 4 authors
English Lit Week 4 Terms
English Lit Week 3 authors
THIS SET IS OFTEN IN FOLDERS WITH...
Plant Cell Structures
Bio 115 Ch 17
Biology: Cell Division (Mitosis) Diagram