Parents that are heterozygous for having freckles (dominant) are crossed. Which correctly describes their offspring? O Twenty-five percent have freckles.
O Twenty-five percent are Ff.
O Seventy-five percent have freckles.
O Seventy-five percent are Ff.

In a cross of parents heterozygous for having freckles, the ratio of their offspring is (C) Seventy-five percent have freckles. Let allele F be dominant and allele f be recessive. Heterozygous parents will have genotype Ff.

Explanation:

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

the answer is b.) hydrogen bonds between bases.