Which of the following is a pseudogene?Multiple choice question.The genes for icefish gill structureThe hemoglobin gene in humansThe genes for human eye colorThe hemoglobin gene in the icefish
Question
Which of the following is a pseudogene?Multiple choice question.The genes for icefish gill structureThe hemoglobin gene in humansThe genes for human eye colorThe hemoglobin gene in the icefish
Solution
The correct answer is "The hemoglobin gene in the icefish".
Pseudogenes are sequences of DNA that are similar to normal genes but have lost their ability to produce proteins due to mutations. They are often referred to as "dormant" or "silent" genes.
In the case of the icefish, it has a hemoglobin gene, but it is a pseudogene. This is because the icefish has adapted to live in the cold waters of the Antarctic, where oxygen dissolves well. As a result, the icefish doesn't need hemoglobin to carry oxygen in its blood, so the hemoglobin gene has become a pseudogene.
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