Prophase is the first phase is when the two sister chromatids pair up and the nucleoli disappears. Prometaphase is the second phase where the microtubules begin to separate from each other, each pair of microtubules attach to the kinetochores and some nonkinetohore microtubules interact with those from the opposite pole of the spindle. Metaphase is the third phase where the chromosomes are lined up on the invisible line of the metaphase plate. Anaphase is the fourth phase where the two daughter chromosomes begin to separate from each other to opposite poles. Telophase is the last phase where the two daughter nuclei form creating two identical nuclei.
A child has to get the sickle cell anemia gene from both of the parents. The parent can carry and pass on the gene without getting sickle cell anemia. But since the gene is in them, there is a possibility they could also get sick.
Hope this helps! :)
During Replication, each of its double strands of DNA splits into two single strands. DNA single strand acts as a template for the formation of a new strand of complementary DNA (end product).
In transcription, DNA is copied (transcribed) to mRNA (end product), which carries the information needed for protein synthesis.
During translation, mRNA directs protein synthesis (end product) with the assistance of tRNA
Introns have the non functional code