Dihybrid Crosses quiz Flashcards

A dihybrid cross is a cross fertilization between two dihybrid organisms that are heterozygous for two specific genes.

The characteristic phenotypic ratio for dihybrid crosses is 9:3:3:1.

It indicates independent assortment, where 9 have the dominant trait for both genes, 3 have dominant-recessive traits, another 3 have recessive-dominant traits, and 1 has recessive traits for both genes.

Dihybrid organisms can produce more types of gametes compared to monohybrid organisms, leading to a larger and more complex Punnett square.

The probability of a coin landing on heads in a single flip is 50%, or 1/2.

The probabilities of coin flips are related to Punnett squares because both represent independent events where the outcome of one event does not affect the outcome of another.

The two rules are the rule of multiplication and the rule of addition.

The rule of multiplication helps determine the probability of two independent events both occurring.

The rule of addition helps determine the probability of either of two mutually exclusive events occurring.

Each box in a Punnett square represents a possible fertilization event of the gametes.

Independent assortment in dihybrid crosses leads to the characteristic 9:3:3:1 phenotypic ratio.

The probability of both coins landing on heads in two independent coin flips is 1/4.

Coin flips can represent alleles, and their outcomes can be used to fill in the boxes of a Punnett square to show possible genetic combinations.

It demonstrates the independent assortment of alleles during gamete formation.

The probability of one coin landing on heads and the other on tails in two flips is 1/2.