THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The arctic fox has two traits for fur color that are determined at birth.
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The alleles for fur color change as the arctic fox grows older.
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Gene expression for fur color is regulated by latitude.
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Gene expression for fur color is regulated by temperature.
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Detailed explanation-1: -The arctic fox inhabits northern areas of North America. The same arctic fox is shown in the drawing at different times of the year. What causes this change in fur color? The alleles for fur color change as the arctic fox grows older.
Detailed explanation-2: -Which of these best explains why the hair that grew back where the ice pack was placed was black and not white? The genes for black hair were activated by specific temperatures.
Detailed explanation-3: -So, the correct answer is ‘Gene expression for fur color in Himalayan rabbits is influenced by temperature’
Detailed explanation-4: -21. Which discovery would challenge the validity of this cladogram? Biologically, one could use anatomical features, behavior, or molecular similarities and differences in constructing a cladogram. Molecularly, one could look at the number of mutations in a common strand of DNA.
Detailed explanation-5: -Which statement provides the best evidence that Ambulocetus natans is an ancestor of Basilosaurus isis? Homologous structures occur in each fossil.