Which of the Following Is NOT a Desired Characteristic of DNA

question 18

Multiple Choice

Which of the following is NOT a desired characteristic of DNA vectors used in gene cloning procedures?

• A) circular form of DNA or integrates into the host chromosome
• B) may replicate in several species
• C) self-replication
• D) large size
• E) has a selectable marker

---

Definitions:

Competitive Exclusion

A principle stating that two species competing for the same resources cannot stably coexist if other ecological factors are constant; one will always outcompete the other.

Paramecium

A genus of unicellular ciliates, commonly studied as a representative of the ciliate group.

Niche Theory

A concept in ecology that describes how an organism fits into its environment, including its role in the ecosystem and interactions with other species.

Limiting Resource

A resource in an ecosystem that restricts the growth, abundance, or distribution of organisms or populations due to its scarcity.