What is the process of cartilage turning into hard adult bones?

Number and variety of living organisms includes genetic, species, and ecological types

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

Atest cross can be used to -predict the phenotypes of a monohybrid cross -predict an unknown genotype of a purebred dominant plant -cross-breed dominant and recessive plants -give probabilities that a trait will appear