Term
|
Definition
| Sex organs; Ovaries in females, testes in males. |
|
|
Term
|
Definition
| Paired chromosomes present in both males and females; all chromosomes except the X and Y chromosomes. |
|
|
Term
|
Definition
| Paired chromosomes that differ between males and females, XX in females; XY in male. |
|
|
Term
|
Definition
| A phenotype determined by an allele on a X chromosome. |
|
|
Term
|
Definition
| A visual representation of the occurrence of phenotypes across generations. |
|
|
Term
|
Definition
| Comparing sequences on the Y chromosome to examine paternity and paternal ancestry. |
|
|
Term
|
Definition
| A form of inheritance in which heterozygotes have a phenotype that is intermediate between homozygous dominant and homozygous recessive. |
|
|
Term
|
Definition
| A form of inheritance in which both alleles contribute equally to the phenotype. |
|
|
Term
|
Definition
| Variation in a population showing an unbroken range of phenotypes rather than discrete categories. |
|
|
Term
|
Definition
| A trait whose phenotype is determined by the interaction among alleles of more than one gene. |
|
|
Term
| Multifactorial Inheritance |
|
Definition
| An interaction between genes and the environment that contributes to a phenotype or trait. |
|
|
Term
|
Definition
| An abnormal number of one or more chromosomes (either extra of missing copies) |
|
|
Term
|
Definition
| The failure of chromosomes to separate accurately nondisjunction in meiosis leads to aneuploid gametes. |
|
|
Term
|
Definition
| Carrying an extra copy of chromosome 21; also known as Down syndrome. |
|
|
Term
|
Definition
| A procedure that removes fluid surrounding the fetus to obtain and analyze fetal cells to diagnose genetic disorders. |
|
|
