2024HSCShort answer

Q25 (b)

4 marks

Question

One-Eyed Jack was a rescue dog that had been injured and lost an eye before his owner adopted him. One-Eyed Jack was cloned and the clone was born with two eyes.
Describe how animals like dogs can be cloned.

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Solution

Criteria	Marks
Describes how animals can be cloned	4
Outlines how animals can be cloned	3
Demonstrates some understanding of the cloning of animals	2
Provides some relevant information	1

Sample answer:

The egg of a host animal is enucleated (nucleus removed). The nucleus of a body cell of the animal to be cloned is removed. The nucleus of the animal to be cloned is inserted into the enucleated host animal’s egg to produce a zygote. The zygote is stimulated to divide via electric charge. The zygote is then transplanted into the surrogate mother's uterus. After a period of time, a cloned animal is born.

Supplied marking guidance · human reviewed

Compare this with your working, not only your final sentence.

Syllabus alignment

Module 6 · Genetic Change

Genetic TechnologiesAssess whole-organism cloning and gene cloning.

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