The first life form found on earth were mostly bacteria. "For the next 1.3 billion years (3.8 to 2.5 billion years ago), the Archean Period, first life began to appear and the world's landmasses began to form. Earth's initial life forms were bacteria, which could survive in the highly toxic atmosphere that existed during this time."
www.chegg.com/homework-help/questions-and-answers You recently discovered four new chemical mutagens (#1 - #4), but you do not know what type(s) of mutations these chemicals induce. You exposed E. coli to each chemical individually and observed mutant phenotypes. You then exposed this bacteria to a second known mutagen to observe if the mutations from chemicals #1 - #4 could be reversed. Your data is presented below. Mutations Induced by Mutations Reversed by Chemical EMS Acridine Orange 5-Bromouracil #1 No Yes No #2 Yes No Yes #3 Yes Yes Yes #4 No No No What type(s) of mutations are likely produced by chemical #3? A. transversions B. transitions C. frameshifts What type(s) of mutations are likely produced by chemical #4? A. transversions B. transitions C. frameshifts (SELECT ALL THAT APPLY)
Answer:
1. B
2. A
3. D
Explanation:
plz mark brainliest if right. sorry if wrong
