What is the outcome of synapsis, a significant event in meiosis?
A) chiasma segregation
B) side-by-side alignment of nonhomologous chromosomes
C) dyad formation
D) side-by-side alignment of homologous chromosomes
E) monad movement to opposite poles
D
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Prereduced, anaerobically sterilized (PRAS) media:
a. are produced, packaged, shipped, and stored under anaerobic conditions. b. have a short shelf life of only 2 weeks. c. enable the culture to be incubated in the regular incubator under aerobic conditions. d. contain peroxides that enhance the growth of certain anaerobes.
The spindle apparatus is made of
a. Golgi bodies. b. nucleoprotein. c. endoplasmic reticulum. d. microtubules. e. chromatids.
A chemical compound is discovered which prevents the actin protein from interacting with the myosin protein. What can you deduce about this compound?
A) It might be an effective compound against amoeboid protozoans but might also be too toxic to human cells to be used. B) It might be an effective compound against bacterial pathogens. C) It might be an effective compound against amoeboid protozoans. D) It might be an effective compound against bacterial pathogens amoeboid protozoans. E) It might have toxic effects against all eukaryotic cells.
The amniotic egg evolved as an adaptation
A. to prevent desiccation. B. to permit the embryo to develop undisturbed up to the time of hatching. C. to insure survival in the uterus. D. against predation.