Which body plan is found in the chordates?
1.Acoelomate body plan
2.Coelomate body plan
3.Pseudocoelomate
2
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After performing a Gram stain on a mixed culture of Gram-positive and Gram-negative cells, you realize that you
omitted the iodine step. What would you expect to see if you observed the slide under the microscope?
a. pink Gram-positive and purple Gram-negative cells b. purple Gram-positive and pink Gram-negative cells c. pink Gram-positive and pink Gram-negative cells d. colorless Gram-positive and pink Gram-negative cells e. colorless Gram-positive and colorless Gram-negative cells
Mendel’s theory of independent assortment states
that a. one allele is always dominant to another. b. hereditary units from the male and female parents are blended in the offspring. c. the two hereditary units that influence a certain trait segregate during gamete formation. d. each hereditary unit is inherited separately from other hereditary units. e. all of these are true.
Transcription factors appear to be important molecules relating to the regulation of gene activity. In eukaryotes, two general classes or transcription factors exist. Briefly describe each
What will be an ideal response?
Which hormone stimulates insect growth and molting?
a. ecdysiotropin b. juvenile hormone c. histamine d. pheromone e. ecdysone