A researcher is interested in comparing the DNA sequence for the gene encoding myosin between a cheetah (mammal) and a red snapper (fish). Which database would be most helpful to her?
A. GenBank
B. Swiss protein database
C. Protein Information Resource
D. Protein Data Bank
E. Swiss protein and Protein Information Resource databases
A. GenBank
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During prophase I of meiosis
1.chromosomes condense. 2.chromosomes are aligned on the equator of the cell. 3.nuclear envelopes form in some species but not in others. 4.homologous chromosomes are separated. 5.DNA is replicated.
Active genes in eukaryotic cells are associated with
A. heterochromatin. B. methylated RNA and histones. C. DNA with many methyl groups. D. euchromatin.
A very deep groove that runs between the right and left cerebral hemispheres is called the ________
A) fissure of Rolando B) longitudinal fissure C) lateral fissure D) central fissure
An example of a positive feedback loop _______.
Fill in the blank(s) with the appropriate word(s).