Why are BLAST comparisons based on protein sequences often easier to interpret than those based on DNA sequences?
What will be an ideal response?
DNA sequences often have greater mismatches because of the degeneracy of the genetic code. Protein matches are therefore easier to compare than DNA sequences.
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Mendel used the ______ to determine whether an individual with the dominant phenotype was homozygous or heterozygous for that trait.
A. backcross B. testcross C. dihybrid cross D. F2 generation E. double cross
The nematode Caenorhabditis elegans is important to human medicine because it
A. causes elephantiasis, a disease of the lymph glands that causes the legs of humans to swell. B. is an intestinal parasite in human digestive tracts. C. has programmed cell death and therefore is useful in cancer and AIDS research. D. is transmitted by mosquitoes and causes high fevers.
An organism that is neither prokaryotic nor photosynthetic, and must obtain its nutrients by secreting digestive
enzymes into the environment, belongs to which group of organisms? a. Bacteria b. protists
c. Fungi d. Plantae e. Animalia
Competition between beneficial microbes and potential pathogens is called microbial (antagonisms/synergy/toxicity)
What will be an ideal response?