本题目来源于试卷: Continuity and Change D.2 Protein Synthesis，类别为 IB生物学
[问答题]
Different species ofai3+p;p tv9fc living organisms have different num9eljz 5i7 bd*w*+jep/y 9nwgmly6j1mbers of genes characteristic to them. The table shows the estimated number of genes fzjgme+/n7 jiywl9 e1j96lpb* w*5ymdor five species.
Species Estimated number of genes
Escherichia coli (bacteria species) 4,000
Drosophila melanogaster (fruit fly) 13,000
Canis lupis familiaris (dog) 20,000
Homo sapiens (humans) 30,000
Oryza sativa (rice) 40,000
1.Using the information in the table deduce the estimated number of loci in a human genome.
2.Explain how a mutation can affect a characteristic.
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