Given that a human genome has about 3 million base pairs, approximately how many errors occur each time the dna is copied?

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Which of the following is the most likely outcome of global warming

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?