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1. Which of the following mechanisms would be necessary in order for Lamarck's theory of evolution to be valid? a) The nervous system causes specific mutations of DNA. b) Mutations occur at random locations in DNA. c) All parts of the body contribute to the genetic information in the gamete. d) Proteins direct their own replication. e) One parent's gametes are diploid.
2. It is often stated that most new mutations are recessive. Which of the following assumptions would be most important in arguing for this statement? a) Most individuals are heterozygous for most of their genes. b) Most individuals are homozygous for most of their genes. c) Most existing alleles are recessive. d) Most existing alleles are dominant. e) Mutations are rare events.
3. A sample of butterflies contained 50% yellow-winged individuals and 50% black-winged individuals. In this species, wing color is determined by a single gene with two alleles, and the allele for black is dominant. Which of the following statements about the allele frequencies in the sample would most likely be true? Do not assume that this sample was obtained from a population in genetic equilibrium. a) The frequency of the yellow allele is greater than that of the black allele. b) The allele frequency of yellow is 3 times the allele frequency of black. c) The allele frequency of yellow is twice the allele frequency of black. d) The allele frequencies of black and yellow are equal. e) The allele frequency of black is greater than the allele frequency of yellow.
4. Now assume that the population of butterflies sampled in question 3 is in Hardy-Weinberg equilibrium. Also assume that the sample is random and large enough that the allele frequencies in the sample equal the allele frequencies in the population. What is the frequency of the allele for yellow wings in the population?
Protein classification schemes
A thirty-five year old man has been brought in to the hospital with severe vomiting, diarrhea, abdominal cramping, and bradycardia.
Assume that there are 63 different naturally occurring amino acids. If all 64 possible combinations of bases for a codon resulted in coding for 63 different amino acids and one stop codon, which of the next mutations would NOT be possible.
Before this module evaluation you were very nervous. Consider a snack might help, you ate a big bowl of pasta and some bread a couple of hourse before you started this quiz.
Based on the dimensions of an alpha-helix, compute the range in width of the membrane? Discuss how many amino acids would be needed in an antiparallel beta strand to span the membrane?
Discuss and name all the muscles that are responsible for expanding the volume of the chest cavity during inspiration.
To be able to run and play requires lots of energy. The Oreo supplies both dietary fiber and glucose that are metabolically quick energy sources.
Which characteristic of cell membranes might explain why fat-soluble substances such as chloroform and ether rapidly affect cells.
The maltose transporter maltoporin spans the outer membrane of E. coli. It is comprised of 18 successive antiparallel Beta - strands arranged like the staves of a barrel to create a channel through the membrane.
Complex, Simple and Hypercomplex (Endstop cells) cells. Layer 4C and synapse onto simple cells. Whether or not they aer bars of light Simple cell is listening to a group of LGN cells. So each increment of 2.5 degrees has different simple cells.
The antibiotic anisomycin is expected to not inhibit the growth of bacteria and to inhibit the growth of Halobium. Anisomycin is resistant to bacteria,
The dye used in the Simmons Citrate Agar is called bromthymol blue. It is green at neutral pH and turns blue as alkalinity increases.
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