Question

what basic unit of heredity is found on segments of dna and are passed on from parent to offspring?
nucleotide
gene
phosphate molecule
deoxyribose sugar

Explanation:

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"Basic Unit of Heredity",
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<reasoning>

Identify the core question

The question asks for the basic unit of heredity located on segments of DNA that is passed from parent to offspring.

Analyze the given options

• nucleotide: The basic chemical building block of DNA and RNA, not the functional unit of heredity itself.
• gene: A specific segment of DNA that contains instructions for making proteins and acts as the basic physical and functional unit of heredity.
• phosphate molecule: A structural component of the DNA backbone.
• deoxyribose sugar: A structural sugar component of the DNA backbone.

Select the correct option

The definition of a gene matches the description of the basic unit of heredity passed from parent to offspring.
</reasoning>

<answer>
<mcq-option>nucleotide</mcq-option>
<mcq-correct>gene</mcq-correct>
<mcq-option>phosphate molecule</mcq-option>
<mcq-option>deoxyribose sugar</mcq-option>
</answer>

<post_analysis>
{
"subject": "Natural Science",
"question_type": "Multiple Choice",
"knowledge_point": [
"Natural Science",
"Biology",
"Genetics"
]
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Answer:

<pre_analysis>
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"question_count": 1,
"skills_matched": [
"direct_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
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"Basic Unit of Heredity",
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"Basic Unit of Heredity",
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"DNA Structure"
]
}
</pre_analysis>

<reasoning>

Identify the core question

The question asks for the basic unit of heredity located on segments of DNA that is passed from parent to offspring.

Analyze the given options

• nucleotide: The basic chemical building block of DNA and RNA, not the functional unit of heredity itself.
• gene: A specific segment of DNA that contains instructions for making proteins and acts as the basic physical and functional unit of heredity.
• phosphate molecule: A structural component of the DNA backbone.
• deoxyribose sugar: A structural sugar component of the DNA backbone.

Select the correct option

The definition of a gene matches the description of the basic unit of heredity passed from parent to offspring.
</reasoning>

<answer>
<mcq-option>nucleotide</mcq-option>
<mcq-correct>gene</mcq-correct>
<mcq-option>phosphate molecule</mcq-option>
<mcq-option>deoxyribose sugar</mcq-option>
</answer>

<post_analysis>
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"knowledge_point": [
"Natural Science",
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