Biology Topic Practice

Adult Cell Cloning

Adult cell cloning allows an exact genetic copy of an existing adult organism to be created.

Which sheep was the first mammal ever cloned using this technique?

What is Adult Cell Cloning?

"Adult cell cloning is a type of therapeutic cloning where a nucleus from a body cell is transferred into an empty egg cell to create a genetically identical embryo."

Question 1

How many times does the cell divide during meiosis?

Question 2

Why is understanding the human genome important for modern medicine?

Question 3

Which group belongs to the domain Archaea rather than true bacteria?

Question 4

If both parents are heterozygous (Bb) for a recessive trait (b), what is the probability their child will express the trait?

Somatic Cell Cloning

Nucleus is removed from an unfertilised egg cell.

Nucleus from an adult body cell (e.g., skin) is inserted into the empty egg cell.

An electric shock stimulates the egg cell to divide into an embryo.

The embryo contains the same genetic information as the adult body cell.

Exam Tip

Dolly the sheep was the first mammal ever cloned using the adult cell cloning technique.

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