What is the relationship between DNA, a gene, and a chromosome?
A. A chromosome contains hundreds of genes, which are composed of DNA
B. A chromosome contains hundreds of genes, which are composed of protein
C. A gene contains hundreds of chromosomes, which are composed of protein
D. A gene contains hundreds of chromosomes, which are composed of DNA
Answers: 3
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In the family tree below, people with the recessive trait of attached earlobes are shaded gray.
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Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited
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What is the relationship between DNA, a gene, and a chromosome?
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