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DNA is divided into several linear bundles called chromosomes, are separated by a microtubular spindle during nuclear division
The DNA usually divides into a number of linear bundles referred to as chromosomes that are usually separated by a microtubular spindle during nuclear division.
Chromosomes in eukaryotes are composed of DNA and proteins, mainly histones. They are condensed and formed into structures called chromatin, which further condense into visible structures during cell division.
Major = DNA; and proteins are a major Assist!
Chromosomes are composed of Supercoils.
DNA molecules are spiraled into a double helix.
This helix is then wrapped around a special molecule called a Histone.
Histones are kept in place by the DNA and form structures called Nucleosomes.
Nucleosomes are then coiled even further into a huge structure called a supercoil.
The supercoil in then coiled even more and eventually forms a chromosome.
So, chromosomes are made from just two 'Supercoils'; [see Histone Proteins], the 10 nm beads for the thin coil and the 30 nm 'beads' for the thick coil.
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Are Minerals composed of atoms?
Yes, minerals are composed of atoms. They are naturally occurring inorganic substances with a specific chemical composition and a crystalline structure formed by the arrangement of atoms.
What chemical complex is eukaryotic chromosomes are composed of a complex of 60 percent protein and 40 percent DNA?
Eukaryotic chromosomes are composed of chromatin, which is made up of approximately 60% proteins (histones) and 40% DNA. The histone proteins help to package and organize the DNA into a compact structure, which is essential for proper gene regulation and chromosome function.
What molecule are the chromosomes made of?
Chromosomes are made up of DNA molecules. These DNA molecules are long strands composed of nucleotides, which are the building blocks of genetic information. The DNA in chromosomes is tightly packed and organized with proteins, forming a structure that is essential for cell division and storage of genetic information.
The rock shown is composed primarily of large Crystals that were formed by?
The rock shown is likely composed primarily of large crystals that were formed by slow cooling of magma beneath the Earth's surface. This slow cooling process allows the crystals to grow to a larger size than in rocks formed by rapid cooling. This type of rock is known as an intrusive igneous rock.
The compound formed between calcium and iodine is?
The compound formed between calcium and iodine is calcium iodide (CaI2). It is an ionic compound composed of calcium cations (Ca2+) and iodide anions (I-).
One difference between the chromosomes of prokaryotes and those of eukaryotes is that?
prokaryotes have circular chromosomes while eukaryotes have linear chromosomes.
What difference between chromosome of prokaryote and eukaryote?
Prokaryotes have a single circular chromosome located in the nucleoid region, whereas eukaryotes have multiple linear chromosomes located in the nucleus. Prokaryotic chromosomes are smaller in size and contain fewer genes compared to eukaryotic chromosomes which are larger and more complex. Eukaryotic chromosomes are associated with proteins to form chromatin, while prokaryotic chromosomes do not have associated proteins.
Prokaryotes are distinguished from eukaryotes in that they have no?
Chromosomes
A tetrad is composed of?
A tetrad is composed of four chromatids formed during the process of meiosis. These chromatids consist of paired homologous chromosomes that are in the process of genetic recombination.
Loading During cell division what structures do the DNA of eukaryotes bunch into?
Chromosomes
How is the chromosomes in the eukaryotes different from the structer of chromosomes in prokaryotes?
in eukaryotic chromosomes it produces DNA to live and in prokaryotic chromosomes it is nothing but bacteria.
What do eukaryotes have but prokaryotes don't?
Eukaryotes have a nucleus and membrane-bound organelles, such as mitochondria and endoplasmic reticulum, which prokaryotes lack. Eukaryotes also have linear chromosomes, while prokaryotes have circular chromosomes. Additionally, eukaryotes often have multicellular organization, which is less common in prokaryotes.
Number of origins of replication on the chromosomes of eukaryotes?
High
How does the structure of a chromosome differ in a prokayote and eukaryote?
Eukaryotic cells have a double membrane, surrounding the nucleus, the organelle that contains several chromosomes. The prokaryote chromosomes are dispersed within the cell and is not enclosed by a separate membrane
Where chromosomes are in a cell?
Chromosomes are found in the nucleus of animal cells (eukaryotes). In bacteria and archaebacteria, they float freely in the organism.
During mitosis chromosomes are moved and separated through the use of spindles composed of?
microtubules. These microtubules are formed from the centrosomes and attach to the chromosomes at their kinetochores. As the microtubules shorten and lengthen, they pull the chromosomes apart, ensuring that each daughter cell receives the correct number of chromosomes.
In eukaryotes DNA...?
Contained within structures called chromosomes that collectively reside within the cell's nucleus that is itself bounded by the nuclear envelope.
