D, because the atomic mass number for carbon is 6
Answer and Explanation:
Replicating DNA is delicate and can breakdown in the process of duplication. The source of DNA rearrangements is broken chromosomes. These chromosomes can alter the cell genetic program. These modifications can activate a growth advantage in a single cell in our body—tumor rise when that cell remains to divide. Cells have defense mechanisms to protect us from these harmful actions. In the eukaryotic cell cycle, chromosomes segregate during the M phase and duplicate during the S phase. The S phase is known as the phase of DNA synthesis, while the M phase is known as the mitosis phase. Any problem with DNA replication activates a checkpoint during the S phase. A checkpoint is a flow of signaling events that places the phase on hold till the issue is resolved—the checkpoint of the S phase work as a surveillance camera. The main purpose of the replication is to produce an identical double strand. Each strand in a DNA molecule functions as a template for a new DNA strand.
Explanation:
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parents". Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. There are two forms of reproduction: asexual and sexual.
In asexual reproduction, an organism can reproduce without the involvement of another organism. Asexual reproduction is not limited to single-celled organisms. The cloning of an organism is a form of asexual reproduction. By asexual reproduction, an organism creates a genetically similar or identical copy of itself. The evolution of sexual reproduction is a major puzzle for biologists. The two-fold cost of sexual reproduction is that only 50% of organisms reproduce[1] and organisms only pass on 50% of their genes.[2]
