Morphologically, Species a Is Very Similar to Four Other Species

question 4

Multiple Choice

Morphologically, Species A is very similar to four other species, B-E. Yet the nucleotide sequence deep within an intron in a gene shared by all five of these eukaryotic species is quite different in Species A compared to that of the other four species when one studies the nucleotides present at each position.
Figure 26.4
-If the sequence of Species A differs from that of the other four species due to simple misalignment, then what should the computer software find when it compares the sequence of Species A to those of the other four species?

• A)The nucleotide at position 1 should be different in Species A, but the same in species B-E.
• B)The nucleotide sequence of Species A should have long sequences that are nearly identical to those of the other species, but offset in terms of position number.
• C)The sequences of species B-E, though different from that of Species A, should be identical to each other, without exception.
• D)If the software compares, not nucleotide sequence, but rather the amino acid sequence of the actual protein product, then the amino acid sequences of species B-E should be similar to each other, but very different from that of Species A.
• E)Computer software is useless in determining sequences of introns; it can only be used with exons.

---

Definitions:

Hypothetical Claim

A statement or assertion based on assumptions or possibilities, not necessarily on facts or reality.

Deductive Argument

A type of logical argument in which the conclusion necessarily follows from the premises if they are true.

Valid

In logic, a term describing an argument where, if the premises are true, the conclusion must also be true.

Argument Form

The structure or pattern of reasoning used in constructing a logical argument.