In 1997, Dolly the Sheep Was Cloned

question 30

Multiple Choice

In 1997, Dolly the sheep was cloned. Which of the following processes was used?

• A) use of mitochondrial DNA from adult female cells of another ewe
• B) replication and dedifferentiation of adult stem cells from sheep bone marrow
• C) separation of an early stage sheep blastula into separate cells, one of which was incubated in a surrogate ewe
• D) fusion of an adult cell's nucleus with an enucleated sheep egg, followed by incubation in a surrogate
• E) isolation of stem cells from a lamb embryo and production of a zygote equivalent

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Definitions:

Labour Costs

The total expenditure incurred by employers for the payment of wages, benefits, and taxes associated with the employment of labor.

Constraints

Limitations or restrictions that affect the planning, process, or outcome of a project or operation.

Optimum

The most favorable condition or level for growth, reproduction, or efficiency.

Minimize

The act of making something as small or as insignificant as possible.