Chapter 9 Vocab Question Preview (ID: 36921)


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A chromosome that determines whether an individual is male or female.
a) linked genes
b) dominant
c) sex chromosomes
d) recessive

With respect to two given genes, the number of recombinant progeny from a mating divided by the total number of progeny.
a) chromosome theory of inheritance
b) recombination frequency
c) complete dominance
d) incomplete dominance

The additive effects of two or more gene loci on a single phenotypic characteristic.
a) polygenic inheritance
b) incomplete dominance
c) complete dominance
d) codominant

Genes located near each other on the same chromosome that tend to be inherited together.
a) linked genes
b) dominant
c) recessive
d) heterozygous

The control of more than one phenotypic characteristic by a single gene.
a) monohybrid cross
b) pleiotropy
c) dihybrid cross
d) dominant

Inheritance pattern in which a heterozygote expresses the distinct trait of both alleles.
a) incomplete dominance
b) complete dominance
c) clone
d) codominant

A type of inheritance in which the phenotypes of the heterozygote and dominant homozygote are indistinguishable.
a) Incomplete dominance
b) complete dominance
c) clone
d) carrier

A type of inheritance in which the phenotype of a heterozygote is intermediate between the phenotypes of the two types of homozygotes.
a) complete dominance
b) Incomplete dominance
c) clone
d) carrier

An individual who is heterozygous for a recessively inherited disorder and who therefore does not show symptoms of that disorder but may pass on the recessive allele to offspring
a) carrier
b) F1 generation
c) F2 generation
d) wild-type trait

A family genetic tree representing the occurrence of heritable traits in parents and offspring across a number of generations.
a) monohybrid cross
b) dihybrid cross
c) pedigree
d) punnett square

The version of a character that most commonly occurs in nature.
a) dominant
b) recessive
c) heterozygous
d) wild-type trait

The mating between an individual of unknown genotype for a particular characteristic and an individual that is homozygous recessive for the same characteristic.
a) punnett square
b) testcross
c) pedigree
d) phenotype

A general rule in inheritance that individuals have 2 alleles for each gene and that when gametes form, the 2 alleles separate, each resulting gamete ending up with only 1 allele of each gene.
a) law of segregation
b) law of independent assortment
c) punnett square
d) testcross

Referring to organisms for which sexual reproduction produces offspring with inherited traits identical to those of the parents.
a) hybrid
b) homozygous
c) true-breeding
d) heterozygous

A heritable feature that varies among individuals, such as flower color, is called a
a) trait
b) character
c) locus
d) pleiotropy

__________ is the transmission of traits from one generation to the next.
a) Heredity
b) Genetics
c) Trait
d) Character

A gene located on a sex chromosome.
a) sex-linked gene
b) dominant
c) recessive
d) heterozygous

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