An mass spectrometer is use to measure amounts of isotopes insample
G1 phase is growth and development of cel S phase, DNA replication occurs or copying of DNA and G2, further growth and maturation to prepare for mitosis. But the critical event here is the replication of DNA
A Punnett square is used to predict the possible genotypes of offspring in a particular cross.
Answer: a cell membrane
Explanation: But remember that bacteria do have their DNA inside their protein envelope. They don’t have a nucleus, but they do have DNA making them also have the ability to reproduce.
<span>C. obtain and use energy. </span>