Evolutionary relationships amongst species are reflected in their:
Correct answer: A. DNA and proteins
- A. DNA and proteins
- B. DNA and gene
- C. RNAs and proteins
- D. DNA and RNAs
Explanation
Explanation:Evolutionary relationships among species are reflected in their DNA and proteins - in their genes and gene products. If two species have genes and proteins with sequences of monomers they match closely, the sequences must have been copied from a common ancestor.Evolutionary relationships amongst species are reflected in their DNA and proteins, not in DNA and gene.Evolutionary relationships amongst species are reflected in their DNA and proteins, not in RNAs and proteins.Evolutionary relationships amongst species are reflected in their DNA and proteins, not in DNA and RNAs.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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