Biology, 24.07.2019 21:30 shayla3613
High doses of caffeine interfere with the dna replication checkpoint mechanism in mammalian cells. why then do you suppose the surgeon general has not yet issued an appropriate warning to heavy coffee and cola drinkers? a typical cup of coffee (150 ml) contains 100 mg of caffeine (196 g/mole). how many cups of coffee would you have to drink to reach the dose (10 mm) required to interfere with the dna replication checkpoint mechanism? (a typical adult contains about 40 liters of water.)
Answers: 1
Biology, 22.06.2019 04:00, egr1387
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.
Answers: 3
Biology, 22.06.2019 12:00, luv4appleallday
The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.
Answers: 1
High doses of caffeine interfere with the dna replication checkpoint mechanism in mammalian cells. w...
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