You asked: What is a chromatin fiber quizlet?

DNA is wrapped around histone proteins to form nucleosomes (beads on a string). Nucleosomes are organized into arrays to form a 30 nm chromatin fiber. The chromatin fiber is looped to form 300 nm extended fiber. These loops are organized into larger loops for form a 700 nm condensed fiber of a mitotic chromosome.

What is chromatin quizlet?

Chromatin. An organelle which forms chromosomes during cell division. Consists of DNA, RNA, and proteins. This organelle can have different structures (e.g.an “x” or lines spinning).

What are chromatin Fibres Class 9?

Chromatin fibers are formed of Deoxyribonucleic Acid (DNA) and proteins. When the cell carries out the process of division, chromatin fibers start condensing into long threads and become rod-like structures called chromosomes.

Which best defines chromatin?

define chromatin. the complex of DNA and proteins that makes up a eukaryotic chromosome. When the cell is not dividing, chromatin exists as a mass of very long thin fibers that are not visible with a light microscope.

What is difference between chromatin Fibre and chromosome?

The chromatin further condenses to form chromosomes.

Difference between Chromosomes and Chromatin
Composed of nucleosomes They are condensed chromatin fibers
Unpaired Paired
Visualized under electron microscope Visualised under light microscope
Thin, long, uncoiled structure Thick, compact, ribbon-like structure
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What does chromatin look like?

Under the microscope in its extended form, chromatin looks like beads on a string. The beads are called nucleosomes. Each nucleosome is composed of DNA wrapped around eight proteins called histones.

What is the function of chromatin quizlet?

The primary functions of chromatin are 1) to package DNA into a smaller volume to fit in the cell, 2) to strengthen the DNA to allow mitosis, 3) to prevent DNA damage, and 4) to control gene expression and DNA replication. -The DNA molecule is packaged into thread-like structures called chromosomes.

Chromatin is the DNA and proteins that make up a chromosome. Chromosomes are the separate pieces of DNA in a cell. And Chromatids are identical pieces of DNA held together by a centromere. … The type of cells the haploid are found in are the sex cells.

What is the similarities between chromatin and chromosomes?

Chromosomes, chromatids, and chromatin share some of the same components. All three have DNA and histone proteins. All three are involved in the process of mitosis as cells divide. Chromosomes and chromatids are exact replicas of each other, as the chromatids are copies of the original chromosome.

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