When reconstructing a phylogeny and creating an evolutionary tree, scientists follow which of the following guidelines?
1.The path with the greatest number of nucleotide sequence changes is selected.
2.Data from outgroups are excluded so as not to bias the tree.
3.The path with the fewest number of steps is the most likely to occur.
4.The total number of differences between the groups must always be a constant within the tree.
3
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Protein folding is critical to protein function. What are the protein helpers that guide the process of protein folding?
a. supervisors b. guidepost proteins c. chaperones d. deamination proteins
A patient has been diagnosed with a major cancer, which has spread. Which treatment would be the best choice?
1.surgical removal 2.monoclonal antibodies 3.chemotherapy 4.radiation therapy
The average number of individuals in a specified
portion of habitat is the population’s a. distribution. b. carrying capacity. c. density. d. size. e. birth rate.
A(n) (genome/codon/operon) is a set of prokaryotic genes that are regulated and transcribed as a unit
What will be an ideal response?