Final answer:
Maria is most likely to inherit brown eyes, as it is a dominant trait, but without knowing her parents' specific genotypes, we cannot be certain. Brown eyes overpower recessive alleles for other colors in typical inheritance patterns.
Step-by-step explanation:
If both of Maria's parents have brown eyes, and considering that eye color is determined by multiple genes, Maria is most likely to inherit brown eyes as well. This is because brown is a dominant trait, and even if each parent carries a recessive allele for a different eye color, brown tends to override other colors. However, without knowing the specific genotypes of the parents, we cannot say for certain what eye color Maria will have but can state that brown is the most probable based on typical inheritance patterns.
Regarding the scenarios presented:
- A couple producing a green-eyed child with both having brown eyes suggests at least one parent carries the allele for green eyes.
- The ratio of offspring resulting from a cross between a white-eyed male and a female heterozygous for red eye color would be: 50% of the male offspring will have red eyes, and 50% white eyes; 50% of the female offspring will be heterozygous with red eyes, and 50% will have white eyes.
- For a female to become colorblind, she must inherit two colorblindness genes, one from each parent, which is much less likely compared to males, as certain traits such as colorblindness are sex-linked and typically recessive.