There are many different types of APIs for operating systems, applications or websites. Windows, for example, has many API sets that are used by system hardware and applications â when you copy and paste text from one application to another, it is the API that allows that to work.
Function of the Nucleolus. Ribosomes are made of two subunits, a large and a small. Each subunit is manufactured separately in the nucleolus. The proteins needed to make them enter the nucleus through pores in the nuclear membrane. The rRNA is made in the nucleolus itself.ibosomes are made of two subunits, a large and a small. Each subunit is manufactured separately in the nucleolus. The proteins needed to make them enter the nucleus through pores in the nuclear membrane.
Chromosomes play an essential part in cellular replication and division. These must be copied, and divided and passed onto daughter cells, which will have identical copies of the genes as the parent cell. Nucleolus . The nucleolus is a prominent region within the nucleus that is not membrane bound. It is the site of rRNA synthesis, where the rRNA is transcribed and assembled. The nucleolus is also the site of ribosome assembly, where the 40S and the 60S ribosomal subunits are transcribed.