Genetic Linkage and Mapping in Eukaryotes

These flashcards cover key terms and concepts related to genetic linkage and mapping in eukaryotes, aiding in understanding the processes of recombination, linkage, and mapping techniques.

Recombination

The process by which homologous chromosomes exchange genetic material during meiosis.

Bivalent

A structure formed during meiosis consisting of a pair of homologous chromosomes.

Linkage

The phenomenon where genes located on the same chromosome are often inherited together.

Chiasma

The point where two homologous chromosomes cross over during meiosis.

Dihybrid testcross

A cross between an individual that is heterozygous for two traits and a homozygous recessive individual.

Recombination Frequency (RF)

The proportion of recombinant offspring among the total offspring, used to estimate the distance between genes.

Genetic Map

A representation of the relative positions of genes on a chromosome.

Physical Map

A representation of the actual physical distances between genes on a chromosome, based on direct measurements.

Cytogenetic Maps

Maps that show the arrangement of genes in relation to visible chromosome landmarks.

Independent Assortment

The principle that alleles of different genes assort independently of one another during gamete formation.