QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which statement about the difference between homologous chromosomes and sister chromatids is correct?
A. Homologous chromosomes and sister chromatids contain the same genes and the same alleles.
B. Homologous chromosomes contain the same genes, but may contain different alleles. Sister chromatids contain the same genes and the same alleles.
C. Sister chromatids contain the same genes, but different alleles. Homologous chromosomes contain the same genes and the same alleles.
D. Neither homologous chromosomes nor sister chromatids contain the same alleles.
Homologous chromosomes contain the same genes, but may contain different alleles. Sister chromatids contain the same genes and the same alleles.
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Answer
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Step 1I'll solve this step by step with clear explanations:
Step 2: Understanding Chromosome Terminology
- Homologous chromosomes are chromosome pairs with: * Same gene locations (loci) * Different possible alleles * One chromosome from maternal parent, one from paternal parent * Similar in length and gene arrangement
Final Answer
B is the correct statement about homologous chromosomes and sister chromatids.
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