Consider the following gel electrophoresis for a single protein from 7 distinct individuals. Based on these results, which of the following statements is CORRECT?The protein displays polymorphism but not heterozygosityThe protein displays heterozygosity but not polymorphismThe protein displays heterozygosity and polymorphismYou can distinguish all of the DNA sequence differences among these 7 individuals in the genes encoding this protein from this gel electrophoresi
Question
Consider the following gel electrophoresis for a single protein from 7 distinct individuals. Based on these results, which of the following statements is CORRECT?The protein displays polymorphism but not heterozygosityThe protein displays heterozygosity but not polymorphismThe protein displays heterozygosity and polymorphismYou can distinguish all of the DNA sequence differences among these 7 individuals in the genes encoding this protein from this gel electrophoresi
Solution
To answer this question, we first need to understand the terms polymorphism and heterozygosity in the context of genetics.
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Polymorphism: This refers to the occurrence of two or more different forms or morphs in the population of a species. In genetics, it refers to the existence of two or more alleles of a gene within a population.
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Heterozygosity: This refers to the state of having two different alleles at a particular locus in a diploid organism.
Now, let's analyze the gel electrophoresis results. Gel electrophoresis is a technique used to separate DNA fragments (or proteins) according to their size.
Unfortunately, without a visual representation of the gel electrophoresis results, it's impossible to definitively answer the question. However, I can provide some general guidance:
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If the gel shows different band patterns for the protein from different individuals, this indicates polymorphism, as it suggests there are different forms of the gene in the population.
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If some individuals show two bands (two forms of the protein), this indicates heterozygosity, as it suggests that those individuals have two different forms of the gene.
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If all individuals show the same band pattern, there is no polymorphism or heterozygosity.
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Gel electrophoresis alone cannot distinguish all DNA sequence differences, as it only provides information about the size of the DNA fragments or proteins. Other techniques, such as DNA sequencing, would be needed to identify specific sequence differences.
So, without the actual gel electrophoresis image, it's impossible to choose the correct statement.
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