How is it possible to explain one parent with curly hair, one parent with straight hair, and a kid with wavy (in-between) hair?

Let's assume curly hair is the dominant trait and trait hair is the recessive trait.

Therefore, our cross is AA x aa. Drawing a Punnett square will then give us all heterozygous individuals.

there for all offspring with have wavy hair

Explanation:

Genetic Variation

Explanation:

Mutations, gene flow, and sexual reproduction causes genetic variation. Mutatio is the changes in the sequence of genes in the DNA. Gene flow is the movement of genes from one organism to another,  and sexual reproduction, is where new combinations of genes are created.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

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