Table of contents

1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

12. Gene Regulation in Prokaryotes

Arabinose Operon

Genetics

12. Gene Regulation in Prokaryotes

Arabinose Operon

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Multiple Choice

The genes in the arabinose operon are responsible for what?

Synthesizing arabinose

Breaking down arabinose

Converting arabinose into starch

Synthesizing sugar

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Verified step by step guidance

Understand the function of an operon: An operon is a cluster of genes under the control of a single promoter and is transcribed into a single mRNA strand. It is a key regulatory unit in prokaryotic cells.

Identify the role of the arabinose operon: The arabinose operon, also known as the ara operon, is a set of genes in bacteria that are involved in the metabolism of arabinose, a type of sugar.

Determine the specific function of the arabinose operon: The genes in the arabinose operon encode enzymes that are responsible for the breakdown of arabinose into simpler molecules that the cell can use for energy and growth.

Differentiate between synthesis and breakdown: Synthesis refers to the creation of complex molecules from simpler ones, while breakdown involves the decomposition of complex molecules into simpler ones. The arabinose operon is involved in the latter process.

Conclude the function of the arabinose operon: Based on the understanding of operon function and the specific role of the arabinose operon, it is clear that its primary function is to break down arabinose, not to synthesize it or convert it into other substances like starch.