According to the modern synthetic theory of evolution, the accumulation of mutations over time
results in
a. microevolution.
b. adaptation.
c. an increase in genetic variation.
d. speciation.
e. macroevolution.
C
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During ____, the three germ layers rearrange to produce tissues and organs
a. organogenesis b. fertilization c. parturition d. gastrulation e. cleavage
Which of the following is an underwater robotic system that allows for wide-ranging observations of the marine environment?
A) ROV B) Critter cam C) Satellite D) Passive sonar system
Type IV secretion systems are potentially applicable to treatment of human disease by using them to deliver DNA to target cells in human gene therapy.
Answer the following statement true (T) or false (F)
You are comparing the events of meiosis I in cells from several different organisms. You come across one species in which you do not observe any chiasmata. The best conclusion to make is
A. there is no crossing over between non-sister chromatids B. kinetochores of sister chromatids do not fuse C. the chromosome pairs will not assort independently D. chiasmata will form during meiosis II