Answer:
a. are probably built by different genes.
Explanation:
Although sharks and dolphins are aquatic animals belonging to the vertebrate group, sharks are fish while dolphins are mammals. Sharks belong to the class Chondrichthyes which are fish that have a cartilaginous skeleton. On the other hand, dolphins are mammals (class Mammalia) which are animals mainly characterized by the presence of mammary glands. In consequence, both species are not closely phylogenetically linked, thereby those genes involved in the development of the integumentary system (skin) in both species are expected to be different.
The sequence of bases on RNA that would match or pair with the following DNA sequence: GCA is CGU.
<h3>What is transcription?</h3>
Transcription is the process by which mRNA sequence is produced from a DNA template in the nucleus of a cell.
During transcription process, the following applies:
- Adenine (A) pairs with Uracil (U)
- Guanine (G) pairs with Cytosine (C)
This means that the mRNA sequence that will result from a template of DNA with sequence: GCA is CGU.
Learn more about DNA sequence at: brainly.com/question/3888340
taxonomy is the science of classification based on their characteristics, basically you classify things based on what they are like organisms, species, family, animal kingdom, food, fossils, plants, animals, human...etc
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