Agatha's blastocyst implanted on December 5th. She is trying to figure out which date fertilization most likely occurred on. Which is the most likely date of fertilization?
A. December 5th
B. December 1st
C. November 25th
D. November 5th
E. December 4th
Answer: B
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A. Trachealis muscle B. Thyroid cartilage C. Cricoid cartilage D. Anular ligament E. Tracheal cartilage
Microtubules
A) are usually composed of myosin. B) are hollow, filamentous structures. C) attach the plasma membrane to the underlying cytoplasm. D) interact with filaments composed of tubulin to produce muscle contractions. E) are found on the ribosomes.
A prefix meaning elevated is ________, while a prefix meaning depressed is ________
A) endo-; ecto- B) inter-; intra- C) hyper-; hypo- D) sub-; supra-
A common reducing agent used to couple chemical reactions in cells is ________.
riboflavin niacin NADH FAD