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Tightly wound DNA in the shape of an "X" or "Y" refers to the structure of chromosomes during cell division. When DNA is replicated, it condenses into these shapes to ensure proper segregation into daughter cells. The "X" shape typically represents replicated chromosomes, with two sister chromatids joined at the centromere, while the "Y" shape can indicate the presence of sex chromosomes, specifically in male organisms where the Y chromosome is present alongside an X chromosome. This organization is crucial for maintaining genetic stability during cell division.
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What structures make up chromosomes?
Chromosomes are composed of DNA molecules tightly wound around proteins called histones. This DNA-protein complex is further condensed into chromatin fibers, which then coil and condense to form the recognizable X-shaped structures we see during cell division. Each chromosome contains a single linear DNA molecule that contains the genetic information of the organism.
What is the structure of all the chromosomes?
Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.Chromosomes are made up of chromatin, tangled DNA networks, that are 'super-coiled' and large enough to be seen by a microscope.
What is a long continuous strand of DNA that contains genes often see in the shape of an x when with its homologous pa?
The dna strand is a exstractisies
Which scientist used X-ray diffraction to find that DNA has a spiral shape?
Rosalind Franklin used X-ray diffraction to capture images of DNA that provided crucial evidence of its helical structure. Her famous Photograph 51 revealed the pattern of X-ray diffraction that indicated DNA's spiral shape, which later contributed significantly to the discovery of the DNA double helix by James Watson and Francis Crick.
What shape was suggested by rosalind franklin's x-ray images?
Rosalind Franklin's x-ray images of DNA suggested a helical shape, specifically a double helix structure. This played a crucial role in the discovery of the structure of DNA by Watson and Crick.
X-ray diffraction photographs by wilkins and Franklin suggest that?
DNA molecules are arranged as a tightly coiled helix. (:
What are Threadlike coils of chromosomes?
Threadlike coils of chromosomes are structures within the nucleus of a cell that consist of DNA and proteins. They are tightly wound during cell division to form the characteristic X-shape and contain the genetic information necessary for cell growth and function.
What structures make up chromosomes?
Chromosomes are composed of DNA molecules tightly wound around proteins called histones. This DNA-protein complex is further condensed into chromatin fibers, which then coil and condense to form the recognizable X-shaped structures we see during cell division. Each chromosome contains a single linear DNA molecule that contains the genetic information of the organism.
What is the structure of all the chromosomes?
Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.Chromosomes are made up of chromatin, tangled DNA networks, that are 'super-coiled' and large enough to be seen by a microscope.
What is a long continuous strand of DNA that contains genes often see in the shape of an x when with its homologous pa?
The dna strand is a exstractisies
Which scientist used X-ray diffraction to find that DNA has a spiral shape?
Rosalind Franklin used X-ray diffraction to capture images of DNA that provided crucial evidence of its helical structure. Her famous Photograph 51 revealed the pattern of X-ray diffraction that indicated DNA's spiral shape, which later contributed significantly to the discovery of the DNA double helix by James Watson and Francis Crick.
Which scientist found the shape of DNA?
James Watson and Francis Crick are credited with deducing the structure of DNA. This was possible due to an x-ray photograph of DNA taken by Rosalind Franklin.
How did Watson and Crick determined the three-dimensional shape of DNA?
Watson and Crick used Franklin and Goslingâ??s â??Photo 51â?? to determine the three-dimensional shape of DNA. â??Photo 51â?? is the X-ray diffraction image of DNA that shows the pattern of DNA structure.
What shape was suggested by rosalind franklin's x-ray images?
Rosalind Franklin's x-ray images of DNA suggested a helical shape, specifically a double helix structure. This played a crucial role in the discovery of the structure of DNA by Watson and Crick.
What is used to demonstrate that the dna molecule is helix?
X-ray crystallography was the technique used by James Watson and Francis Crick to demonstrate that the DNA molecule is a helix. By analyzing the diffraction patterns produced when X-rays were shone on crystallized DNA samples, they were able to deduce the helical structure of the DNA molecule.
Do solids have particles that are packed tightly together and are firmly connected?
Yes, a solid is the most dense of the states of matter, it's particles are tightly packed and difficult to separate. if x is one particle; xxxx x x x x x xxxx x x xxxx x x x x solid liquid gas the solid's particles require more energy to separate than the liquid or gas. Hope this helps
What role did xray photo of DNA play in the discovery of DNA structure?
The X-ray photo of DNA taken by Rosalind Franklin provided crucial evidence for the structure of DNA. It showed a distinctive X-shaped pattern, suggesting a helical structure. This data was key for Watson and Crick to propose their double helix model of DNA.
