10 Genetics - Monohybrid Crosses

Front

What is a heterozygous genotype?

Back

A heterozygous genotype consists of two different alleles for a particular gene, such as Tt.

Front

What is a purebred genotype for brown fur if brown (B) is dominant over white (b)?

Back

The purebred genotype for brown fur is BB.

Front

What is heredity?

Back

Heredity is the passing of genetic traits from parent to offspring.

Front

What is a recessive allele?

Back

A recessive allele is one whose trait is only expressed when no dominant allele is present.

Front

What are the possible genotypes from a cross between Bb (Dad) and BB (Mom)?

Back

The possible genotypes are BB and Bb.

Front

Define genotype.

Back

Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses.

Front

Define phenotype.

Back

Phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is a dominant allele?

Back

A dominant allele is one that expresses its trait even in the presence of a recessive allele.

Front

What is the purpose of a Punnett square?

Back

A Punnett square is used to predict the genotypes of offspring from a genetic cross.

Front

What does it mean for an organism to be homozygous?

Back

An organism is homozygous if it has two identical alleles for a particular gene, such as BB or bb.