5 Written Questions
5 Matching Questions
- color blindness
- Fragile X syndrome
- Duchenne muscular dystrophy
- a Chronic progressive disease affecting the shoulder and pelvic girdles, commencing in early childhood; transmitted as an X-linked trait, and affected individuals, predominantly males, rarely survive to maturity.
- b Allele that is located on an X chromosome but may control a trait that has nothing to do with the sex characteristics of an individual.
- c Deficiency in one or more of the three kinds of cones responsible for color vision.
- d Genetic disease that results in a constellation of abnormalities due to a trinucleotide repeat expansion.
- e Group of symptoms that appear together and tend to indicate the presence of a particular disorder.
5 Multiple Choice Questions
- Prenatal test in which a sample of chorionic villi cells is removed for diagnostic purposes.
- One more chromosome than usual.
- Any chromosome other than the sex chromosomes.
- Variation in regard to the normal number of chromosomes inherited or in regard to the normal sequence of alleles on a chromosome.
- Procedure for removing amniotic fluid surrounding the developing fetus in order to test the fluid or cells within the fluid.
5 True/False Questions
linkage group → Change in chromosome structure in which a segment of a chromosome is turned around 180°.
Nondisjunction → Failure of homologous chromosomes or daughter chromosomes to separate during meiosis I and meiosis II, respectively.
sex chromosome → Chromosome that determines the sex of an individual; in humans, females have two X chromosomes, and males have an X and a Y chromosome.
Hemophilia → X-linked, recessive genetic disease in which one or more clotting factors are missing.
Carrier → Dark-staining body in the nuclei of female mammals that contains a condensed, inactive X chromosome.