What is the mutation caused by the addition of a nucleotide to an already existing gene sequence called?
IanS046
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December 2022
A polar bear has thick, white fur that camouflages it when it sits on snow. Which type of adaptation is this modification?
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December 2022
Pointed teeth help tear apart food, and large, flat teeth are used to grind food. Based on this information, what types of teeth are characteristic of animals that eat plants and animals that eat other animals?
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December 2022
Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Based on this information, what is true about human skin color?
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December 2022
A white rooster mates with a black hen. The offspring is gray in color. What is this phenomenon called?
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December 2022
The images show two different types of Galapagos tortoises that scientists believe descended from the same species. The first type (left) lives on islands that have high vegetation and few grasses. The second type (right) lives on an island that has large amounts of grasses and low-lying shrubs. What explains...
IanS046
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December 2022
Mutations in certain genes of bacteria cause them to be resistant to powerful antibiotics. What type of mutation is this for the bacteria?
IanS046
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December 2022
A gene with the sequence ATTCATTCA underwent duplication after a few generations. Which sequence represents this gene after the mutation?
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December 2022
Which examples of artificial selection are caused by human activity without people even realizing it?
IanS046
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December 2022
Axial flowers are a dominant trait in pea plants, and terminal flowers are a recessive trait. Which genotype represents a plant that has homozygous dominant genes for axial flowers?