Doc Voc AP Bio
225625886 | Heredity | the transmission of traits from one generation to the next | |
225625887 | Genetics | the scientific study of heredity | |
225625888 | Character | a heritable feature that varies among individuals, such as flower color | |
225625889 | Trait | each varient for a character, such as purple or white flowers, brown or blond hair | |
225625890 | Self-fertilize | sperm-carrying pollen grains released from the stamens land on the egg-containing carpel of the same flower | |
225625891 | Cross-fertilization | fertilization of one plant from the pollen of another plant | |
225625892 | True-breeding varieties | varieties for which self-fertilization produced offspring all identical to the parent | |
225625893 | Hybrid | the offspring of two different varieties | |
225625894 | Genetic cross | cross fertilization is simply referred to as this | |
225625895 | P generation | the true-breeding parental plants | |
225625896 | F1 generation | the parental plants hybrid offspring | |
225625897 | F2 generation | the self or cross fertilized offspring of the F1 generation | |
225625898 | Dihybrid cross | a mating of parental varieties differing in two characters | |
225625899 | Law of Independent Assortment | the inheritance of one character has no effect on the inheritance of another | |
225625900 | Testcross | a mating between and individual of unknown genotype (a BB or Bb black lab, you dont know) and a homozygous recessive (bb, chocolate lab) individual. | |
227682766 | Monohybrid Cross | a cross in which the parents differ in only one characteristic | |
227682767 | Allele | the alternative version of a gene | |
227682768 | Homozygous | an organism that has two identical alleles for a gene is said to be this | |
227682769 | Heterozygous | an organism that has two different alleles for a gene is said to be this | |
227682770 | dominant allele | the allele that if present will always show, PP or Pp | |
227682771 | recessive allele | the allele that will only show if two of the same, pp | |
227682772 | law of segregation | a sperm or egg carries only one allele for each inherited character because allele pairs separate from each other during the production of gametes | |
227682773 | Punnett Square | a chart that shows all the possible combinations of alleles that can result from a genetic cross | |
227682774 | Phenotype | an organisms physical trates (purple or white flowers) | |
227682775 | Genotype | an organisms genetic makeup (PP,Pp,pp) | |
227682776 | Locus | a specific location of a gene along the chromosome | |
227682777 | Rule of multiplication | the probability of such a compound event is the product of the probabilities of each independent event | |
227682778 | Rule of addition | the probability that an event can occur in two or more alternative ways is the sum of the separate probabilities of the different ways | |
227682779 | Wild-type traits | traits prevailing in nature | |
227682780 | Pedigree | a family tree that contains all the information of who in the family had or didnt have a specific trait | |
227682781 | Carrier | someone who has a recessive allele but also has a dominant one | |
227682782 | Cystic Fibrosis (CF) | the most common life threatening genetic disease in the US, caused by a recessive allele, excess mucus in the lungs, increased susceptibility to infections, death in early childhood if not treated | |
227682783 | Inbreeding | matings between close blood relatives | |
227682784 | Achondroplasia | a form of dwarfism in which the head and torso of the body develop normally but the arms and legs are short | |
227682785 | Huntington's Disease | a degenerative disorder of the nervous system that usually does not appear until middle age, fatal | |
227682786 | Amniocentesis | the collections of fetal cells, from the amniotic fluid that bathes the fetus, for genetic testing | |
227682787 | Chorionic villus sampling (CVS) | a physician extracts a tiny sample of chorionic villus tissue from the placenta, the organ that carries nourishment and wastes between the fetus and the mother, and uses them to make a karyotype | |
227682788 | Ultrasound imaging | uses sound waves to produce a picture of the fetus directly | |
228597719 | Complete Dominance | the dominant allele has the same phenotypic effect whether present in one or two copies | |
228597720 | Incomplete Dominance | the appearance of the F1 hybrids falls between the phenotypes of the two parents varieties | |
228597721 | ABO Blood Group | 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; the phenotypes, also called blood types, are A, B, AB, and O | |
228597722 | Codominant | the expression of both alleles in a heterozygous individual | |
228597723 | Pleiotropy | A single gene having multiple effects on an individuals phenotype | |
228597724 | Sickle-cell disease | makes red blood cells produce abnormal hemoglobin proteins | |
228597725 | Polygenic inheritance | the additive effects of two or more genes on a single phenotypic character, the converse of pleiotropy | |
228597726 | The Chromosome Theory of Inheritance | genes occupy specific loci on chromosomes, and it is the chromosomes that undergo segregation and independent assortment during meiosis. Thus, it is the behavior of chromosomes during meiosis and fertilization that accounts for inheritance patterns | |
228597727 | Linked Genes | genes located close together on the same chromosome | |
228597728 | Recombinant Frequency | the percentage of recombinants | |
228828169 | Linkage Map | a diagram of relative gene location | |
228828170 | Sex chromosomes | the pair of chromosomes, designated x and y, that determine and individuals sex | |
228828171 | Sex-linked gene | a gene located on either sex chromosome | |
228828172 | Hemophilia | an x-linked recessive trait with a long, well-documented history. Hemophiliacs bleed excessivley when injured because they lack one of more of the proteins required for blood clotting. | |
228828173 | Red-green colorblindness | a sex-linked recessive disorder in humans that causes a malfunction of light-sensitive cells in the eyes | |
228828174 | Duchenne muscular dystrophy | a condition characterized by a progressive weakening of the muscles and a loss of coordination, is another human x-linked recessive disorder |