Why are prokaryotic cells generally smaller than eukaryotic cells? Why are skin cells undergoing mitosis continuously? Why are cells alive but macromolecules are not? Why do viruses need cells? Do prokaryotic cells have mitochondria? If so, what is the purpose of the mitochondria?
Prokaryotic Cells RNA Prokaryotic cells are unicellular organisms that lack a nucleus and other organelles present in eukaryotic cells. There are two domains of prokaryotic organisms, Bacteria, and Archaea. Answer and Explanation:1 Although prokaryotic cells do not have a nucleus, they do have genetic...
Question: How many chromosomes do onions have? Answer and Explanation: Learn more about this topic: Comparative Genomics: Chromosome Number from Chapter 7/ Lesson 3 5.5K In comparative genomics, the number of chromosomes is examined to see the genes that are passed down in different organisms. ...
The cell cytoplasm, alternatively called the cytosol, represents the stew in which the various components of the cell "swim." All cells, prokaryotic and eukaryotic, have a cytoplasm, without which the cell could no more have structural integrity than an empty balloon could. If you have ever se...
Does mitosis occur in animal cells? Mitosis occurs only ineukaryotic cells. ... For example, animal cells undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, whereas fungi undergo a "closed" mitosis, where chromosomes divide within an intact cell nu...
ChromosomesIn eukaryotic cells, transcription and DNA replication occur on DNA templates associated with chromatin proteins, most notably histone octamers. Protein factors that can assemble these units have been isolated from many sources. In particular, one factor from human cells is associated with ...
Long telomeres, the protective caps of eukaryotic chromosomes, which erode during aging, have been the symbol of youth and regenerative potential. It therefore came as a surprise, when several cross-sectional studies reported that telomeres in sperm cells of old men are longer than in young men ...
Eukaryotic Microbiology Animal Genetics and Genomics Industry Sectors Health & Hospitals Authors James H. Oliver Jr. (1) (2) Author Affiliations 1. Division of Entomology and Acarology, University of California, Berkeley 2. Consultant to Medical Zoology Department, United States Naval Medical ...
While organisms in the domainProkaryotaoften have cells that include essentially just these components, and also consist only of a single cell, organisms in the other domain,Eukaryota, have more complex and diverse cells. Eukaryotic cells, as they're known, have various organelles such asmitochondr...
Eukaryotic cells typically have their DNA organized into multiple linear chromosomes. The DNA within the nucleus is highly organized and condensed to fit inside the nucleus, which is accomplished by wrapping the DNA around proteins called histo...