WorksheetsChapter 6 Genetics Terms Quiz
Total questions: 17
Worksheet time: 9mins
Gene
allele that is only expressed if two copies are present in an organism's genotype
having two of the same alleles at the same locus of sister chromatids
alternative forms of a gene that occurs at a specific place on a chromosome
a segment of DNA that stores genetic information
Allele
cross or mating between two different organisms involving a pair of one or more contrasting traits
alternative forms of a gene that occurs at a specific place on a chromosome
an allele that is expressed when two different alleles are expressed in an organism's genotype
having two different alleles at the same locus of sister chromatids
Homozygous
having two different alleles at the same locus of sister chromatids
a collection of an organism's genetic material
having two of the same alleles at the same locus of sister chromatids
all of an organism's genetic material
Heterozygous
having two different alleles at the same locus of sister chromatids
having two of the same alleles at the same locus of sister chromatids
tendency for genes located close together on the same chromosome to be inherited together
form of nuclear call division that dissolves a diploid cell into haploid cells
Genome
a collection of an organism's genetic material that codes for traits
collection of all an organism's physical characteristics
model for predicting all possible genotypes resulting from a cross or mating
all of an organism's genetic material
Genotype
allele pairs separate from one another during gametic formation
all of an organism's genetic material
allele that is only expressed if two copies are present in an organism's genotype
a collection of an organism's genetic material that codes for traits
Phenotype
cross or mating between two different organisms involving a pair of one or more contrasting traits
Cross or mating between organisms that involves only one pair of contrasting traits
collection of all an organism's physical characteristics
cross between an organism with an unknown genotype and an organism with a recessive phenotype
Dominant allele
an allele that is expressed when two different alleles are expressed in an organism's genotype
tendency for genes located close together on the same chromosome to be inherited together
allele that is only expressed if two copies are present in an organism's genotype
a segment of DNA that stores genetic information
Recessive allele
form of nuclear call division that dissolves a diploid cell into haploid cells
allele that is only expressed if two copies are present in an organism's genotype
tendency for genes located close together on the same chromosome to be inherited together
an allele that is expressed when two different alleles are expressed in an organism's genotype
Punnett square
collection of all an organism's physical characteristics
exchange of chromosome segments between homologous chromosome segments during meiosis
allele pairs separate from one another during gametic formation
model for predicting all possible genotypes resulting from a cross or mating
Monohybrid cross
form of nuclear call division that dissolves a diploid cell into haploid cells
Cross or mating between organisms that involves only one pair of contrasting traits
having two different alleles at the same locus of sister chromatids
cross or mating between two different organisms involving a pair of one or more contrasting traits
Test cross
cross between an organism with an unknown genotype and an organism with a recessive phenotype
having two of the same alleles at the same locus of sister chromatids
tendency for genes located close together on the same chromosome to be inherited together
model for predicting all possible genotypes resulting from a cross or mating
Dihybrid cross
cross or mating between two different organisms involving a pair of one or more contrasting traits
an allele that is expressed when two different alleles are expressed in an organism's genotype
allele that is only expressed if two copies are present in an organism's genotype
having two different alleles at the same locus of sister chromatids
Law of independent assortment
a segment of DNA that stores genetic information
tendency for genes located close together on the same chromosome to be inherited together
allele pairs separate from one another during gametic formation
alternative forms of a gene that occurs at a specific place on a chromosome
Crossing over
allele that is only expressed if two copies are present in an organism's genotype
a segment of DNA that stores genetic information
a collection of an organism's genetic material that codes for traits
exchange of chromosome segments between homologous chromosome segments during meiosis
Meiosis
a collection of an organism's genetic material that codes for traits
Cross or mating between organisms that involves only one pair of contrasting traits
allele that is only expressed if two copies are present in an organism's genotype
form of nuclear call division that dissolves a diploid cell into haploid cells
Genetic linkage
tendency for genes located close together on the same chromosome to be inherited together
model for predicting all possible genotypes resulting from a cross or mating
cross or mating between two different organisms involving a pair of one or more contrasting traits
allele pairs separate from one another during gametic formation
