The core genome for the bacterium Lactococcus lactis is 1,500 genes. What is the most likely representation of its pan-genome? Multiple Cholce O genes 1,300 genes 1,500 genes

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**Question:**

The core genome for the bacterium Lactococcus lactis is 1,500 genes. What is the most likely representation of its pan-genome?

**Multiple Choice Options:**

- 0 genes
- 1,300 genes
- 1,500 genes
- 1,700 genes *(selected option)*

This question is presented as part of a series, specifically as question number 3 out of a total of 13, within an educational material.

**Explanation:**

The core genome refers to the set of genes shared by all strains of a species. In contrast, the pan-genome includes the core genome plus all the additional genes present in some but not all strains. Thus, the pan-genome is typically larger than the core genome, which explains why 1,700 genes might be a plausible selection for the Lactococcus lactis pan-genome.
Transcribed Image Text:**Question:** The core genome for the bacterium Lactococcus lactis is 1,500 genes. What is the most likely representation of its pan-genome? **Multiple Choice Options:** - 0 genes - 1,300 genes - 1,500 genes - 1,700 genes *(selected option)* This question is presented as part of a series, specifically as question number 3 out of a total of 13, within an educational material. **Explanation:** The core genome refers to the set of genes shared by all strains of a species. In contrast, the pan-genome includes the core genome plus all the additional genes present in some but not all strains. Thus, the pan-genome is typically larger than the core genome, which explains why 1,700 genes might be a plausible selection for the Lactococcus lactis pan-genome.
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