Genetics Vocab Ch. 7 Of Pierce 3Rd Ed

Front 1

cell line

Back 1

genetically identical cells that divide indefinitely and can be cultured in the laboratory

Hint 1

186

Front 2

centiMorgan

Back 2

another name for map unit

Hint 2

173

Front 3

coefficient of coincidence

Back 3

ratio of observed double crossovers to expected double crossovers

Hint 3

181

Front 4

coupling (cis) configuration

Back 4

arrangement in which two or more wild-type genes are on one chromosome and their mutant alleles are on the homologous chromosome; also called coupling configuration

Hint 4

167

Front 5

deletion mapping

Back 5

technique for determining the chromosomal location of a gene by studying the association of its phenotype or product with particular chromosome deletions

Hint 5

185

Front 6

genetic map

Back 6

map of the relative distances between genetic loci, markers, or other chromosome regions determined by rates of recombination; measured in percent recombination or map units

Hint 6

173

Front 7

genetic marker

Back 7

any gene or DNA sequence used to identify a location on a genetic or physical map

Hint 7

185

Front 8

heterokaryon

Back 8

cell possessing two nuclei derived from different cells through cell fusion

Hint 8

186

Front 9

interchromosomal recombination

Back 9

recombination among genes on different chromosomes

Hint 9

169

Front 10

interference

Back 10

degree to which one crossover interferes with additional crossovers

Hint 10

180

Front 11

intrachromosomal recombination

Back 11

recombination among genes located on the same chromosome

Hint 11

169

Front 12

linkage group

Back 12

genes located together on the same chromosome

Hint 12

162

Front 13

linked genes

Back 13

genes located on the same chromosome

Hint 13

162

Front 14

lod (logarithm of odds) score

Back 14

logarithm of the ratio of the probability of obtaining a set of observations, assuming a specified degree of linkage,to the probability of obtaining the same set of observations with independent assortment; used to assess the likelihood of linkage between genes from pedigree data

Hint 14

185

Front 15

map unit (mu)

Back 15

unit of measure for distances on a genetic map; 1 map unit equals 1% recombination

Hint 15

173

Front 16

mapping function

Back 16

relates recombination freqeuncies to actual physical distances between genes

Hint 16

183

Front 17

Morgan

Back 17

100 map units

Hint 17

173

Front 18

nonrecombinant (parental) gamete

Back 18

contains only the original combinations of genes present in the parents

Hint 18

164

Front 19

nonrecombinant (parental) progeny

Back 19

possesses the original combinations of traits possessed by the parents

Hint 19

164

Front 20

physical map

Back 20

map of physical distances between loci, genetic markers, or other chromosome segments; measured in base pairs

Hint 20

173

Front 21

recombinant gamete

Back 21

possesses new combinations of genes

Hint 21

164

Front 22

recombinant progeny

Back 22

possesses new combinations of traits formed from recombinant gametes

Hint 22

164

Front 23

recombination frequency

Back 23

proportion of recombinant progeny produced in a cross

Hint 23

166

Front 24

repulsion (trans) configuration

Back 24

arrangement in which each chromosome contains one wild-type (dominant) gene and on mutant (recessive) gene; also called repulsion

Hint 24

167

Front 25

somatic-cell hybridization

Back 25

fusion of different cell types

Hint 25

186

Front 26

three-point testcross

Back 26

cross between an individual heterozygous at three loci and an individual homozygous for recessive alleles at thoe loci

Hint 26

175

Front 27

two-point testcross

Back 27

cross between an individual heterozygous at two loci and an individual homozygous for recessive alleles at those loci

Hint 27

174