Heredity

Front

What are the possible blood types of children from a heterozygous blood type A woman and a homozygous blood type B man?

Back

AB and B

Front

What are autosomal chromosomes?

Back

Chromosome pairs 1-22

Front

In mice, if dark fur (D) is dominant to light fur (d) and round ears (R) are dominant to pointed ears (r), what percentage of offspring from a heterozygous dark fur and homozygous pointed ears mouse crossed with a homozygous light fur and heterozygous round ears mouse would have dark fur and round ears?

Back

25%

Front

What is the term for observable characteristics or physical traits of an organism?

Back

Phenotype

Front

In a cross between a speckled flower (RW) and a red flower (RR) in carnations, what are the phenotypic percentages of the offspring?

Back

50% red, 50% speckled

Front

What is the definition of genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even in the presence of a recessive allele, while recessive alleles only express their trait when two copies are present.

Front

What is codominance in genetics?

Back

A form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the expected phenotypic ratio of offspring from a monohybrid cross?

Back

Typically 3:1 for dominant to recessive traits.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.