Select the best set of data for constructing the type of diagram shown above
A. molecular data
B. morphological data of extant species
C. anatomical, physiological and
developmental studies of extant species the
fossil record
D. A combination of a-d would give you the
best data set.
D
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Intercalating agents, like acridine orange and ethidium bromide, lead to mutagenesis by pushing DNA base pairs apart, which can lead to insertions or deletions
Indicate whether the statement is true or false.
About how long have modern humans existed?
A) 25,000 years B) 250,000 years C) 2,500,000 years D) 25,000,000 years
Coliforms that cause opportunistic and nosocomial infections, except
What will be an ideal response?
Which of the following statements regarding the G1 (first gap) phase of the eukaryotic cell cycle is NOT true?
A. If DNA is heavily damaged, checkpoint proteins will delay the cell cycle; the damage will either be fixed or cell division will be permanently stopped. B. Most cells spend the majority of their lives in the G1 phase of the cell cycle. C. Cells that are terminally differentiated and will not divide mitotically might exit the G1 phase and enter the G0 phase. D. The G1 phase is only part of interphase. E. If environmental conditions are favorable during the G1 phase, G1 cyclins are degraded causing the cell to prepare to replicate its DNA.