Answered: Characteristics of 12 Drosophila…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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A group of scientists sequenced the genomes of 12 species of Drosophila (Drosophila 12 Genomes Consortium. 2007. Nature 450:203–218). Data on genome sizes and numbers of protein-encoding genes from this study are given in the accompanying table. Plot the number of protein-encoding genes as a function of genome size for the 12 species of Drosophila. Is there a relation between genome size and number of genes in fruit flies? How does this compare with the relation between genome size and number of genes across all eukaryotes?

Characteristics of 12 Drosophila species genomes
Species
Genome size (millions of Number of protein-
base pairs)
encoding genes
D.
melanogaster
200
13,733
D. simulans
15,983
162
D. sechellia
171
16,884
D. yakuba
190
16,423
D. erecta
135
15,324
D. ananassae
217
15,276
D.
pseudoobscura
D. persimilis
193
16,363
193
17,325
D. willistoni
222
15,816

D. virilis
364
14,680
D. mojavensis
130
14,849
D. grimshawi
231
15,270

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