6.2

Question 1

A single, distinct version of a gene

Answer 1

Allele

Question 2

A pattern of non-Mendelian inheritance in which there are multiple dominant alleles, which when present in the genotype, are both expressed

Answer 2

Codominance

Question 3

A mating experiment between two individuals who are heterozygous for two different traits to predict the probabilities of genotypes
and phenotypes in their offspring for both traits.

Answer 3

Dihybrid cross

Question 4

An allele whose trait is always visible in the organism’s phenotype when the allele is present; represented by uppercase letter

Answer 4

Dominant allele

Question 5

The allele combination for a trait, will contain a combination of two
alleles each found on homologous chromosomes.

Answer 5

Genotype

Question 6

A genotype made up of two different alleles for a specific gene;
one dominant, one recessive allele

Answer 6

Heterozygous

Question 7

A genotype made up of two identical alleles for a specific gene

Answer 7

Homozygous

Question 8

A pattern of non-Mendelian inheritance in which the heterozygous genotype results in a phenotype that is a blending of the parental traits

Answer 8

Incomplete dominance

Question 9

A trait or characteristic that is passed from a parent to their
offspring through genes

Answer 9

Inherited

Question 10

The pattern of inheriting characteristics that follows the laws formulated by Gregor Mendel (less common inheritance pattern)

Answer 10

Mendelian inheritance

Question 11

A mating between individuals that have different alleles of a single gene

Answer 11

Monohybrid cross

Question 12

A pattern of non-Mendelian inheritance where a gene has more than two alleles (e.g. blood type in humans)

Answer 12

Multiple alleles

Question 13

A type of inheritance that does not follow Mendelian laws of inheritance

Answer 13

Non-Mendelian inheritance

Question 14

An observable trait or characteristic (the trait that gets expressed from the genotype)

Answer 14

Phenotype

Question 15

A pattern of non-Mendelian inheritance
where a trait is controlled by two or more
genes (e.g. skin, eye color)

Answer 15

Polygenic trait

Question 16

The likelihood that a particular event will
occur

Answer 16

Probability

Question 17

A tool (model) used to indicate all possible genotypic outcomes of a particular
cross or breeding experiment and to calculate genotypic and phenotypic probabilities in offspring

Answer 17

Punnett square

Question 18

An allele whose trait is masked when a
dominant allele is present and is only expressed in the phenotype in the absence of a dominant allele; represented by a lowercase letter

Answer 18

Recessive allele

Question 19

A pattern of non-Mendelian genetics
which includes traits controlled by genes
located on sex chromosomes

Answer 19

Sex-linked trait

Question 20

A characteristic that an organism can
pass on to its offspring through its genes

Answer 20

Trait

Question 21

A pattern of recessive inheritance that
corresponds to a gene on the X chromosome, and is, therefore, more common in males

Answer 21

X-linked recessive