Which of the following describes how gene expression in eukaryotes is different from prokaryotes? all eukaryotic genes are homologous eukaryotes do not have a phenotype transcription and translation are not simultaneous the use of a different genetic code

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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**Understanding Gene Expression Differences between Eukaryotes and Prokaryotes**

This educational section aims to enhance knowledge about how gene expression in eukaryotes differs from that in prokaryotes. Consider the following multiple-choice question:

**Which of the following describes how gene expression in eukaryotes is different from prokaryotes?**

1. [ ] all eukaryotic genes are homologous
2. [ ] eukaryotes do not have a phenotype
3. [ ] transcription and translation are not simultaneous
4. [ ] the use of a different genetic code

**Explanation:**

- **Option 1: all eukaryotic genes are homologous**
  - This statement is inaccurate as not all genes in eukaryotes are homologous; genes among organisms can show diverse relationships.

- **Option 2: eukaryotes do not have a phenotype**
  - This is also incorrect. Eukaryotes do exhibit phenotypes, which are the physical expressions of their genetic information.

- **Option 3: transcription and translation are not simultaneous**
  - This is the correct answer. In eukaryotes, transcription (the process of converting DNA to mRNA) occurs in the nucleus, and translation (the process where ribosomes create proteins from mRNA) happens in the cytoplasm. This spatial separation means that transcription and translation cannot occur simultaneously, unlike in prokaryotes where they are coupled processes happening in the cytoplasm.

- **Option 4: the use of a different genetic code**
  - This option is incorrect. Both eukaryotes and prokaryotes use the same universal genetic code.

Understanding these key differences is essential for students studying genetic and molecular biology, as it highlights the complexity and compartmentalization of eukaryotic cells compared to the simpler prokaryotic cells.
Transcribed Image Text:**Understanding Gene Expression Differences between Eukaryotes and Prokaryotes** This educational section aims to enhance knowledge about how gene expression in eukaryotes differs from that in prokaryotes. Consider the following multiple-choice question: **Which of the following describes how gene expression in eukaryotes is different from prokaryotes?** 1. [ ] all eukaryotic genes are homologous 2. [ ] eukaryotes do not have a phenotype 3. [ ] transcription and translation are not simultaneous 4. [ ] the use of a different genetic code **Explanation:** - **Option 1: all eukaryotic genes are homologous** - This statement is inaccurate as not all genes in eukaryotes are homologous; genes among organisms can show diverse relationships. - **Option 2: eukaryotes do not have a phenotype** - This is also incorrect. Eukaryotes do exhibit phenotypes, which are the physical expressions of their genetic information. - **Option 3: transcription and translation are not simultaneous** - This is the correct answer. In eukaryotes, transcription (the process of converting DNA to mRNA) occurs in the nucleus, and translation (the process where ribosomes create proteins from mRNA) happens in the cytoplasm. This spatial separation means that transcription and translation cannot occur simultaneously, unlike in prokaryotes where they are coupled processes happening in the cytoplasm. - **Option 4: the use of a different genetic code** - This option is incorrect. Both eukaryotes and prokaryotes use the same universal genetic code. Understanding these key differences is essential for students studying genetic and molecular biology, as it highlights the complexity and compartmentalization of eukaryotic cells compared to the simpler prokaryotic cells.
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