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What structure in the nucleus holds the DNA?
The DNA molecule forms a double helix. The linear DNA chromosomes of eukaryotes form a highly supercoiled double helix.
What happens to chromosomes in nucleus of a body cell when it forms reproductive cells?
Chromosomal number become halved.Diploid cells be come haploid.
What term is used to describe ancient cells with no nucleus?
The term used to describe ancient cells with no nucleus is "prokaryotic cells." These cells, which include bacteria and archaea, are characterized by their simple structure, lacking membrane-bound organelles. Prokaryotic cells are considered some of the earliest forms of life on Earth.
Why does the nucleus of carbon remain unchanged when it forms methane?
The nucleus of carbon remains unchanged when it forms methane because only the outer electrons are involved in bonding to hydrogen atoms to form the methane molecule. The nucleus contains protons and neutrons, which are not involved in chemical reactions.
Where is all the DNA in a cell contained?
DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
What structure in the nucleus holds the DNA?
The DNA molecule forms a double helix. The linear DNA chromosomes of eukaryotes form a highly supercoiled double helix.
Are bacteria cells with nucleus?
Bacteria are the most primitive forms of cells, and they do not have a "real" nucleus. Their DNA basically floats around inside of them.
What molecule forms the cell membrane of all cells?
lipids.
Which type of nucleic acid molecule forms a double helix?
DNA
Hereditary material found in the nucleus?
Chromotain (which forms chromosomes during when cells split).
Which part of DNA forms the double-helix structure?
All of it, that is the shape of the molecule.
What happens to chromosomes in nucleus of a body cell when it forms reproductive cells?
Chromosomal number become halved.Diploid cells be come haploid.
What was the first type of true cells to form on earth was?
The first true cells were prokaryotic cells. These were simple life-forms that didn't have a nucleus. The next to evolve were eukaryotic cells which do have a nucleus.
What term is used to describe ancient cells with no nucleus?
The term used to describe ancient cells with no nucleus is "prokaryotic cells." These cells, which include bacteria and archaea, are characterized by their simple structure, lacking membrane-bound organelles. Prokaryotic cells are considered some of the earliest forms of life on Earth.
Does an oxygen molecule usually have two oxygen atoms?
Yes, oxygen is a diatomic molecule, meaning it naturally forms O2.
Which organelles are present in all cells?
I'm pretty sure ribosomes are present in all cells although they come in different forms (rough, smooth, etc), I think the nucleus and membrane are also in all cells but I would double check. Hope this helps :)
Are body cells and nucleus the same?
NO. Both contain DNA but they are very different forms. The nucleus contains Eukaryotic DNA while the Mitochondria contains DNA similar to the Prokaryotes. The nucleus is responsible for control of the cell and stores the vast majority of the DNA. The mitochondria's main function is to produce ATP (Adenosine TriPhosphate) which is the energy carrying molecule.
