Answer:
B. introns; exons
Explanation:
Related genes from different organism usually translate to proteins of indispensable functions. This means that the proteins must be similar in terms of amino acids produced. Therefore the coding region must be highly conserved. These can be found in the introns. Conversely, exons are not a part of the coding sequence and therefore not required for translation. These sequences may be less conserved.
O The yeast cell mutated the gene to it compatible.
<span>Regions of DNA that read the same regardless of the direction are called Palindromes. The sequence of nucleotides is the same whether you start from the 3' end or the 5' end. Palindromes may occur due to chromosomal inversion or due to breakage.</span>
