Questions: What contains about 6.4 billion base pairs and about 20,000 genes? O The human genome O A nucleotide O A transfer RNA molecule O A eukaryotic chromosome

What contains about 6.4 billion base pairs and about 20,000 genes? O The human genome O A nucleotide O A transfer RNA molecule O A eukaryotic chromosome
Transcript text: Multiple Choice Question What contains about 6.4 billion base pairs and about 20,000 genes? O The human genome O A nucleotide O A transfer RNA molecule O A eukaryotic chromosome Need help? Review these concept resources. Rate your confidence to submit your answer: High Medium Low Reading
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Solution

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The answer is the first one: The human genome.

Explanation for each option:

  1. The human genome: This is correct. The human genome contains approximately 6.4 billion base pairs, which are organized into about 20,000 genes. This encompasses the entire set of DNA in a human, including all of its genes.

  2. A nucleotide: This is incorrect. A nucleotide is a basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base. It does not contain billions of base pairs or thousands of genes.

  3. A transfer RNA molecule: This is incorrect. Transfer RNA (tRNA) molecules are small RNA molecules that help decode a messenger RNA (mRNA) sequence into a protein. They do not contain billions of base pairs or thousands of genes.

  4. A eukaryotic chromosome: This is incorrect. While a eukaryotic chromosome contains a large amount of DNA, it does not contain 6.4 billion base pairs. The human genome is made up of multiple chromosomes, each containing a portion of the total base pairs and genes.

In summary, the human genome is the correct answer as it encompasses the entire set of genetic material in humans, including the specified number of base pairs and genes.

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