In eukaryotes, ribosomes get their orders for protein synthesis from the nucleus, where portions of DNA (genes) are transcribed to make messenger RNAs (mRNAs). An mRNA travels to the ribosome, which uses the information it contains to build a protein with a specific amino acid sequence.
The top 10 causes of death. Top 10 causes of death worldwide. Of the 56.4 million deaths worldwide in 2015, more than half (54%) were due to the top 10 causes. Ischaemic heart disease and stroke are the worldâs biggest killers, accounting for a combined 15 million deaths in 2015. These diseases have remained the leading causes of death globally in the last 15 years.
Leading causes of death vary greatly by age. While cancer and heart disease were prominent causes of death among women of all ages, unintentional injury was the leading cause of death among women aged 18â44 years and the third leading cause for those aged 45â64 years, compared to the ninth leading cause for women aged 65 and older.