Which is an example of macroevolution?
a. conserved ancestral features of the modern day coelacanth
b. the mass extinction of the dinosaurs 66 million years ago
c. the evolution of humans from primates
d. the adaptations of flowering plants driven by changes in pollinator behavior
e. the evolution of antibiotic-resistant bacteria
ANSWER: c
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Which of the following statements is not part of Morgan's Theory of Independent Assortment?
A. Alleles for different genes on the same chromosome are usually inherited together. B. Crossing-over events during meiosis results in the exchange of genetic information between homologues. C. The closer genes are to each other on the chromosome, the less likely a crossover will occur between them. D. Linked genes are always inherited together. E. All of these statements are part of Morgan's Theory of Independent Assortment.
When diet and exercise has failed to produce any significant weight loss, some patients who are seriously overweight elect to have stomach surgery. A procedure galled gastric sleeve surgery removes more than half of the stomach, leaving a tube (or sleeve) about the size of a banana. Following gastric sleeve surgery, patients would have the least trouble ____.
A. eating large chunks of food of relatively hard consistency B. eating protein-rich foods C. eating large amounts of food at one time D. eating carbohydrate-rich foods Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about digestion in the stomach? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Using the genetic code, predict what type of mutation has occurred in the hemoglobin sickle cell anemia allele. Normal allele GGAAUGAAACAGGAACCC Mutant allele GGAAUGAAACAGGUACCC
A. a point mutation, Val to Glu B. a frame shift C. addition of a new stop codon D. a point mutation, Glu to Val
The ENCODE project seeks to
A. sequence the genomes of all animals. B. identify the functional elements of the human genome. C. identify the coding sequences of human DNA. D. sequence the DNA of all organisms. E. identify the proteins encoded by the human genome.