SSCE VCE Biology Genetic Diversity and Adaptations: Embryonic studies of zebra fish

Question

Embryonic studies of zebra fish and humans have shown common features exist. DNA studies have shown there are common genes for particular traits, such as body pigments. The nucleotide sequence of the zebra fish and human gene coding for body pigment are about 70% identical.

In Victoria, regulations require fishermen who catch golden perch fish (Macquaria ambigua) to return small fish to the water. Only medium-sized and large fish can be kept. In a Biology class, some students stated that returning small fish to the water was an example of selective breeding. Other students thought it was an example of natural selection.

Salmon is a species of fish. A biotechnology company has engineered a faster-growing salmon by splicing genes from another species of fish into the salmon DNA.

What general name is given to an organism that contains genes from other species?

Embryonic studies of zebra fish and humans have shown common features exist - VCE - SSCE Biology - Question 7 - 2012 - Paper 1

Worked Solution & Example Answer:Embryonic studies of zebra fish and humans have shown common features exist - VCE - SSCE Biology - Question 7 - 2012 - Paper 1

Explain why zebra fish and humans have a gene coding for the same trait but have variation within the gene.

Explain the difference between selective breeding and natural selection.

What general name is given to an organism that contains genes from other species?

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