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Classification 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 yeast) Ba

ID: 301901 • Letter: C

Question

Classification 45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 yeast) Bacterla Plant Oryza sativa (rice) Ailuropoda melanoleucaArchaea Animal (glant pandFungl Daphnia pulex (water flea) Rattus norvegicus (lab rat) Arabidopsis thaliana (mustard plant) Pan troglodytes (chlmpanzee) Ornithorhynchus anatinus (duck-billed platypus) Caenorhabditis elegans (nematode) Drosophila melanoga (truit ly) 2 Macropus eugeniiHomo sapiens (wallaby) Saccharomyces cerevisiae (humans) Zea mays (corn) 5,000 Haemophilus influenzae (bacterlum) Methanosarcina barkeri (archaeon) 0.25 0.5 1.5 2.0 2.5 3.0 3.5 Slze of haplold genome (blilions base palrs) 02018 Pearson Eaucation rne Animals have the largest numbers of genes Nematodes have more genes that mustard plants Mammals tend to have the largest genomes The size of the genome is negatively correlated with the number of genes

Explanation / Answer

Answer is 70

Genome density expressed as ratio between number of genes to the size of the genome in million base pairs

Human beings - 3 billion base pairs =300 million base pairs

21000/300=70 genes per MB