Here are four children in the smith family. one child has blue eyes and blond hair. the other three children have brown eyes and blond hair. how can you explain this difference in eye color?

    Human eyes offer an extensive and beautiful color palette. However, it is well known that eye color is mainly determined for genetic reasons.

   From the color of the parents' eyes to that of the great-grandparents, one can predict what color the eyes of their descendants will be. Nevertheless, you should never forget that there can always be some surprise.

   Certainly, you should know that every human being has two types of genes: dominant and recessive. Both influence the color of the eyes and hair of the individual.

   Dominant genes are the strongest, as they exert the most influence on determining the color of the baby's eyes. On the other hand, recessive genes are weaker but do not cancel each other out. This means that when chromosomes come together after fertilization, one allele will prevail over the other.

    Let's look at the case where the father has blue eyes and the mother brown eyes. In this circumstance, there would be little chance of the child having blue eyes, as the brown phenotype is dominant over blue.

In this case, both parents must have blonde hair & brown eyes & they both carry the recessive gene for blue eyes.

Father:

B b - offers dominant and recessive gene

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Mother:

B b - offers dominant and recessive gene

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Brown-eyed children

Bb or BB

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Blue-eyed son

bb

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.