Question

kai looks at a photo of herself with her parents. she notices that, while her features are similar to her parents features, they do not appear to be identical.
which explains why this is the case?
○ their dna is made of different codon sequences.
○ their dna is made of four different bases.
○ kai inherited more proteins from one parent than the other.
○ kai inherited different amino acids from either of her parents.

Explanation:

To solve this, we analyze each option:

• Option 1: DNA codon sequences differ between individuals (including parents and child), leading to similar but non - identical features due to genetic variation in codon sequences that code for traits.
• Option 2: All DNA (including Kai and her parents) has 4 bases (A, T, C, G), so this can't explain the difference.
• Option 3: Inheritance is of genes (not directly more proteins from one parent), and protein synthesis is based on genetic code, so this is incorrect.
• Option 4: Amino acids are the building blocks of proteins, and inheritance is of genetic information (DNA) that codes for amino acid sequences, not direct inheritance of amino acids. So this is wrong.

Answer:

A. Their DNA is made of different codon sequences.