click below
click below
Normal Size Small Size show me how
Heredity
Heredity Science 7
Question | Answer |
---|---|
heredity | passing of traits from one generation to another |
alleles | different forms of a trait that a gene may have |
Gregor Mendel | the father of genetics who experimented with garden peas |
hybrid | having different alleles from each parent |
purebred | producing the same traits, generation after generation |
cross pollination | transfer from one flower to a second flower |
dominant | A trait that covers up the other allele; Uses a capital letter to represent it |
recessive | A trait that is hidden; Use a lowercase letter to represent it |
Punnett Square | a tool used to predict Mendelian genetics |
genotype | genetic makeup of an organism |
phenotype | physical appearance resulting from genotype |
Homozygous | Two of the same alleles for a trait (TT or tt) |
Heterozygous | Two different alleles for a trait (Tt) |
probability | the chance that an event will take place |
cancer | tumor caused by abnormal and uncontrolled cell division |
genetic disorder | an inherited disease or disorder that is caused by a mutation in a gene or by a chromosomal defect |
asexual reproduction | reproductive process that involves only one parent and produces offspring that are identical to the parent |
sexual reproduction | type of reproduction in which cells from two parents unite to form a new organism that is NOT genetically identical to either parent |
cloning | making a genetically identical copy of DNA of an organism |
Genetically Modified Organisms (GMOs) | an organism whose genetic material has been altered through some genetic engineering technology or technique |
Pedigree Chart | diagrams the inheritance of a trait through generations of a family |
gene | a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring |
Genetics | the study of Heredity |