Which term refers to individuals with two identical alleles for a particular trait
What will be an ideal response?
Homozygous
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How do the features of a larval tunicate differ from an adult tunicate? Check all that apply.
_____ Larval tunicates have a conspicuous notochord that is lost by the time they reach adulthood. _____ Larval tunicates have a hollow dorsal nerve cord that is reduced to a ganglion in adults. _____ The tail of a larval tunicate is lost by the time it transforms into an adult. _____ The pharynx of the larval tunicate becomes more prominent in the adult. _____ The larval tunicate lacks an incurrent and siphon but the adult has both structures.
In humans, what cells do not have a nucleus when mature?
a. erythrocytes b. lymphocytes c. neutrophils d. eosinophils e. monocytes
Which of the following best describes semiconservative replication?
a. The translation of a DNA molecule into a complementary strand of RNA. b. A DNA molecule consists of one parental strand and one new strand. c. The number of DNA molecules is doubled with every other replication. d. The replication of DNA never takes place with 100% accuracy. e. The replication of DNA takes place at a defined period in the cell cycle.
Who formalized a set of criteria for determining the cause of infectious diseases. He proposed that for concluding that a microbe causes a particular disease, these criteria must be fulfilled.
A. Alexander Fleming B. Louis Pasteur C. Ignatz Semmelweis D. Robert Koch E. Joseph Lister