One of the Main Obstacles to Successful Cloning of Sheep

question 31

Multiple Choice

One of the main obstacles to successful cloning of sheep, apparently overcome by Wilmut et al., was:

• A) to find an adult nucleus that was likely to work.
• B) to synchronize the cell cycles of the donor cell and the egg cell.
• C) to enucleate the donor cell.
• D) the ability to culture cells in the laboratory.
• E) to recognize that the nucleus from one sheep cell may contain different genetic information than the nucleus of another cell from the same animal.

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Definitions:

Buffer Systems

Mixtures in the body's fluids that help to maintain a stable pH by neutralizing excess acids or bases.

Intracellular Ph

Intracellular pH is the measure of acidity or alkalinity within a cell, crucial for maintaining cellular functions and enzyme activities.

Amino Acids

Amino acids are organic compounds that serve as the building blocks of proteins, necessary for the synthesis of hormones, neurotransmitters, and enzymes among other functions.

Carbon Atoms

Carbon atoms are the chemical basis of all known life, capable of forming stable bonds with many elements including themselves, thus serving as the backbone of organic molecules.