Dihybrid Cross

Front

What is a dihybrid cross?

Back

A dihybrid cross is a genetic cross that examines the inheritance of two different traits, each represented by two alleles.

Front

What does the genotype AaPp represent in a dihybrid cross?

Back

The genotype AaPp indicates that the individual is heterozygous for both traits, with 'A' and 'a' representing one trait and 'P' and 'p' representing another.

Front

What is the phenotypic ratio expected from a dihybrid cross?

Back

The expected phenotypic ratio from a dihybrid cross is 9:3:3:1.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an individual (the alleles), while phenotype refers to the observable traits or characteristics.

Tags

NGSS.HS-LS3-1

Front

How many different gametes can an individual with the genotype GgBb produce?

Back

An individual with the genotype GgBb can produce four different gametes: GB, Gb, gB, and gb.

Front

What is the significance of using a Punnett square in genetics?

Back

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

Front

If one brother has genotype BB and the other has Bb, what can be inferred about their eye color?

Back

Both brothers have brown eyes, indicating they share the same phenotype but have different genotypes.

Tags

NGSS.HS-LS3-1

Front

What is the total number of offspring produced in a typical dihybrid cross?

Back

A typical dihybrid cross produces 16 offspring.

Front

What does the term 'allele' mean in genetics?

Back

An allele is a variant form of a gene that can produce different traits.

Front

What is the purpose of identifying gametes in a genetic cross?

Back

Identifying gametes helps determine the possible genetic combinations that can occur in the offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2