Some bacteria have a higher incidence rate of thymine dimer mutations following exposure to UV light than others. What might be going on here to lead to this outcome?
A. They may simply have a higher proportion of T nucleotides next to each other in their DNA sequences than other bacteria, leading to more possible dimers being formed.
B. They may have a stronger expression of photoreactivation enzymes, leading to more thymine dimers being formed and retained.
C. They may have a weaker expression of photoreactivation enzymes, leading to more thymine dimers being formed and retained.
D. They may simply have a higher proportion of T nucleotides next to each other in their DNA sequences than other bacteria, leading to more possible dimers being formed AND they may have a stronger expression of photoreactivation enzymes, leading to more thymine dimers being formed and retained.
E. They may simply have a higher proportion of T nucleotides next to each other in their DNA sequences than other bacteria, leading to more possible dimers being formed AND they may have a weaker expression of photoreactivation enzymes, leading to more thymine dimers being formed and retained.
E
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Active transport differs from passive transport in that active transport does not require an input of energy.
a. true b. false
What is the smallest unit of evolution?
A. individual organism B. a group of organisms belonging to the same species C. a group of organisms of the same species living together in the same geographical area at the same time D. a population E. Both C and D are correct.
a deficiency in what mineral leads to anemia
What will be an ideal response?