Where are chromosomeslocated? What are they composed of? What is chromatin material and how does it change just before the celldivides?
Question
Where are chromosomeslocated? What are they composed of? What is chromatin material and how does it change just before the celldivides?
Solution
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Chromosomes are located inside the nucleus of both animal and plant cells.
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Chromosomes are composed of DNA and protein. The DNA contains the specific instructions that make each type of living creature unique. The protein is used to package the DNA into a compact, dense shape.
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Chromatin is the material that makes up a chromosome. It consists of protein, RNA, and DNA. Chromatin organizes DNA into a compact structure. It also plays an important role in gene expression.
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Just before a cell divides, the chromatin material condenses. This condensation makes the chromosomes visible under a microscope. The condensed structure allows the chromosomes to be easily separated during cell division. The chromatin also undergoes replication so that each new cell will have a complete set of chromosomes.
Similar Questions
What are the two types of Chromatin Modification? Describe each.
Which occurs during prophase?Multiple select question.Copied chromatin condenses into chromosomes.The nucleolus disappears, and the nuclear membrane breaks down.A nuclear membrane forms around the chromatin.Spindle fibers begin to form.Sister chromatids separate.Chromosomes line up in the middle of the cell.
The type of chromosomal storage that is condensed and contains genes that are largely inaccessible to the cellular machinery responsible for gene activity.Group of answer choiceseuchromatinchromatinheterochromatinNext
Describe the changes in the structure of the chromosomes during DNA replication.
Prior to cell division, each chromosome replicates so there are two copies of its genetic material. The products are connected by a centromere and are called:Group of answer choicesSister chromosomesSex chromosomesSister chromatidsHomologous chromosomes
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