Chapter 6: Genetic Linkage and Mapping in Eukaryotes Flashcards Preview

Genetics 2305 > Chapter 6: Genetic Linkage and Mapping in Eukaryotes > Flashcards

Flashcards in Chapter 6: Genetic Linkage and Mapping in Eukaryotes Deck (10)
Loading flashcards...
1

synteny

when two or more genes are located on the same chromosome

2

genetic linkage

genes that are close together on the same chromosome tend to be transmitted as a unit, influencing inheritance patterns

3

linkage groups

synonymous with chromosome, because chromosomes contain a group of genes that are physically linked together

4

how many linkage groups do humans have?

Humans have 22 autosomal linkage groups, and an X chromosome linkage group, and males have a Y chromosome linkage group. In addition, the human mitochondrial genome is another linkage group.

5

bivalent

also called a tetrad, two pairs of sister chromatids joined in crossing over

6

genetic recombination

an event leading to new combinations of alleles

7

nonparental cells

also called recombinant cells, a product of crossing over in which linked alleles are reassorted, producing cells that do not share the same combination of alleles found in the chromosomes of their parents

8

recombinant cells

also called nonparental cells, a product of crossing over in which linked alleles are reassorted, producing cells that do not share the same combination of alleles found in the chromosomes of their parents

9

parental offspring

also called non recombinant offspring, offspring that have inherited the same combination of alleles that are found in the chromosomes of their parents

10

nonrecombinant offspring

also called parental offspring, offspring that have inherited the same combination of alleles that are found in the chromosomes of their parents