Worksheet: Cloning Animals

In this worksheet, we will practice describing the processes of cloning animals, and explaining the risks and benefits involved.

Q1:

In adult cell cloning, what has to be removed from the egg?

  • AThe mitochondria
  • BThe ribosomes
  • CThe nucleus
  • DThe cytoplasm
  • EThe cell membrane

Q2:

Which of the following best defines a clone?

  • AA clone is an organism that is genetically similar to another.
  • BA clone is an organism that is genetically identical to another.
  • CA clone is an organism that is genetically different from another.
  • DA clone is an animal that shares 50% of its DNA with another.
  • EA clone is an organism that shares the same parents as another.

Q3:

For the following statements, state whether they are advantages or disadvantages of cloning in animals, or if there is no correlation between cloning and the example given.

Cloning animals reduces the genetic diversity of a population.

  • ADisadvantage
  • BAdvantage
  • CThere is no link between cloning animals and genetic diversity.

Cloning animals like sheep and cows could lead to unregulated experiments on cloning humans.

  • ADisadvantage
  • BAdvantage
  • CThere is no link between cloning animals and cloning humans.

Cloning animals could be used to preserve endangered species.

  • AAdvantage
  • BDisadvantage
  • CThere is no method of cloning endangered species.

Cloning animals could help us research age-related disorders.

  • AThere is no link between cloning and research of age-related disorders.
  • BDisadvantage
  • CAdvantage

Q4:

In adult cell cloning, after the egg and body cell are combined, they are given an electric shock. What is the purpose of this?

  • ATo stimulate cell division
  • BTo initiate reproduction
  • CTo allow substances to enter the cell
  • DTo stimulate DNA regeneration

Q5:

The diagram given shows a simplified outline of embryo transplants in cows.

What is the scientific term for the cell that is produced immediately after the fertilization of an egg cell?

  • AA zygote
  • BA gamete
  • CA somatic cell
  • DA calf
  • EA nucleus

After an early embryo is formed, it is split into smaller groups of cells. Where do these cells go?

  • AInto a culture medium
  • BInto surrogate sheep
  • CInto the donor cow
  • DInto the surrogate cows
  • ETo a lab to be disposed of

The surrogate (or host) mothers give birth to the calves. Which of the following is true about these calves?

  • AThey are genetically identical to the donor.
  • BThey are genetically unique.
  • CThey are genetically identical to the surrogate cows.

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