GENERAL HISTOLOGY

Detailed explanation-1: -The genetic information of eucaryotic cells has a hybrid origin-from the ancestral anaerobic eucaryote, and from the bacteria that it adopted as symbionts. Most of this information is stored in the nucleus, but a small amount remains inside the mitochondria and, for plant and algal cells, in the chloroplasts.

Detailed explanation-2: -It’s in the middle of the cell, and the nucleus contains all of the cell’s chromosomes, which encode the genetic material.

Detailed explanation-3: -By housing the cell’s genome, the nucleus serves both as the repository of genetic information and as the cell’s control center. DNA replication, transcription, and RNA processing all take place within the nucleus, with only the final stage of gene expression (translation) localized to the cytoplasm.

Detailed explanation-4: -The eukaryotes have their DNA in a nucleus that is enclosed by a membranous nuclear envelope. The nucleus of the eukaryotes is surrounded in the cell by the cytoplasm. The organelles are located in the cytoplasm. Many of the organelles that are found in eukaryotes are not found in prokaryotes.

Detailed explanation-5: -Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).