In the section "Investigating Life: Birds Do, Bees Do It", what hypothesis did the researchers test?
A. Mutation in a single gene could cause a change in flower color and thus pollinator.
B. Mutation in multiple genes over a long period of time is required to change flower color and pollinators.
C. Pollinators do not choose which flowers to pollinate based on color.
D. M. lewisii and M. cardinalis are the same species.
E. M. lewisii and M. cardinalis are different species.
A. Mutation in a single gene could cause a change in flower color and thus pollinator.
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Predict how Pasteur's conclusions on spontaneous generation with swan flasks would have changed if he worked with and maintained the flasks in a sterile laminar flow hood
A) Sterilization of the swan flask solutions would not have been necessary to reject spontaneous generation. If he did sterilize the flasks, the spontaneous generation hypothesis would have been supported. B) His incubation times would not have been sufficient to refute spontaneous generation. C) Pasteur's flasks never would have putrefied, and the experiment would not have refuted spontaneous generation. D) Viruses would have still been present, and his conclusion would have been unchanged.
Use the BLAST tool at http://blast.ncbi.nlm.nih.gov/Blast.cgi and click "Protein blast" to find out the identity of the protein with the following amino acid sequence:
A) myosin B) actin C) albumin D) DNA polymerase E) tubulin
A hormone that will be secreted from a cell is manufactured by ribosomes ________
A) attached to the endoplasmic reticulum B) attached to the Golgi apparatus C) attached to the plasma membrane D) inside the nucleus
At an autosomal gene locus in humans, the allele for brown eyes is dominant over the allele for blue eyes. At another gene locus, located on the X chromosome, a recessive allele produces colorblindness while the dominant allele produces normal color vision. A heterozygous brown-eyed woman who is a carrier of colorblindness has children with a blue-eyed man who is not colorblind. What is the probability that their first child will be a blue-eyed female who has normal color vision? (Enter the probability as a percent. Enter the number only without the percent sign. For example, enter 100% as 100 and enter 12.5% as 12.5)
Fill in the blank(s) with the appropriate word(s).