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  Home >> Genetics Dictionary >> Complex Trait - Conserved Sequence

Complex Trait
Trait that has a genetic component that does not follow Mendelian inheritance. May involve the interaction of t' more genes or gene-environment interactions.

Computational biology
See: bioinformatics.

Conodont

 A jawless fish that had tiny, tooth-like phosphate pieces that abundant in the fossil record, these were the earliest known Vertebrates.

Conception
The onset of pregnancy marked by fertilization of the egg by the sperm.

Concerted evolution
The tendency of the different genes in a gene family to evolve in concert; that is, each gene locus in the family comes to the same genetic variant.

Confidentiality
In genetics, the expectation that genetic material ant information gained from testing that material will not be available without the donor's consent.

Confined Placental Mosaicism
Mosaicism that is seen in the placenta but not the fetus.

Congenital
Any trait present at birth, whether the result of a genetic or nongenetic factor. See also: birth defect.
Present at birth; not necessarily genetic.
Existing at birth; mayor may not be of genetic origin.
3. Inborn. When a person is born with a condition, the condition called congenital. See Acquired Disease.

Congential Heart Defect
Abnormal development of the heart or of the blood vessels ar the heart that is present at birth.
Consanguinity
Relationship by descent from a common ancestor (blood relationship).

Conservative replication
A postulated mode of DNA replication in which an intact double helix acts as a template for a new double helix; known to be incorrect.

Conjugation
Temporary fusion of two single-celled organisms for the purposes of exchanging genetic information.
2. A temporary union of two single celled organisms with at least one of them receiving genetic material from the other; in bacteria the exchange is unidirectional with the donor cell extruding all or a portion of one of its chromosomes into the recipient cell

Conserved sequence
A base sequence in a DNA molecule (or an amino acid sequence a protein) that has remained essentially unchanged throughout evolution.

 

 

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