Vocabulary Chapter 9 Flashcards
Genetically determined classes of human blood that are based on the presence or absence of carbohydrates a and B on the surface of red blood cells
ABO blood groups
The fusion of sperm and egg derived from two different individuals.
Cross-fertilization
A form of human dwarfism caused by a single dominant allele
Achondroplasia
An alternative version of a gene
Allele
A technique for diagnosing genetic defects while a fetus is in the uterus
Amniocentesis
An individual who is heterozygous for a recessively inherited inherited disorder and he therefore does not show symptoms of that disorder but may pass on the recessive allele to offspring
Carrier
A technique for diagnosing genetic defects while a fetus is in an early development stage within the uterus
Chorionic villus sampling
Hey basic principle in biology stating that genes are located on chromosomes and that the behavior of chromosomes during meiosis accounts for inheritance patterns
Chromosome theory of inheritance
Inheritance pattern in which a heterozygote expresses the district trait in both alleles
Codominant
A type of inheritance in which the phenotypes of the heterozygote and dominant homozygote are indistinguishable
Complete dominance
Hey mating of two sexually reproducing individuals
Cross
A genetic disease that occurs in people with two copies of a certain recessive allele
Cystic fibrosis
An experimental mating of individuals different at two genetic loci
Dihybrid cross
The allele that determines the phenotype of a gene when the individual is heterozygous for that gene
Dominant allele
A human genetic disease caused by a sex linked recessive allele
Duchenne muscular dystrophy