No, the continents are much younger because new crust forms there. No, the ocean floor is much younger because new crust forms there. Yes, both the ocean floor and continents are constantly forming new crust. Yes, both the ocean floor and continents were formed at the <em>same time</em>.
Translation begins when RIBOSOME and tRNA converge on an mRNA molecule in the cytoplasm. Translation is the process by which the genetic information transcribed on mRNA is transform into proteins. The process is divided into three stages: initiation, elongation and termination. During elongation, the ribosome reads each codon of the mRNA and directs the tRNA to bring the particular amino acid into the ribosome, one at a time. The process terminates when a stop codon is reached.
male gametes that contribute genetic information (DNA) but few or no nutrients to the offspring. the nuclei of the egg and one sperm unite to form the zygote; the other sperm nucleus fuses with the two polar nuclei, forming a triploid (3n) cell. so, a, I believe.
hope I helped!
It makes a copy of its DNA — and sometimes the copy is not quite perfect. That small difference from the original DNA sequence is a mutation.
