本题目来源于试卷: Continuity and Change D.3 Mutations & Gene Editing，类别为 IB生物学
[问答题]
Different species of livj7/xo0i vcc 3iing organisms have different numbers of genes i(: o:o-iyxw1xlg f;mcharacteristic to them. The table shows the estimated numberx:oi 1(fxw;il - goym: of genes for 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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