LABORATORY REVIEW
MITOSIS AND MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA and Fatty Acid
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DNA and Lipids
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DNA and Protein
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Tissue and Spindles
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Detailed explanation-1: -Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Detailed explanation-2: -The DNA that makes up each chromosome has been repeatedly tightly coiled around proteins called histones to support its structure. The two main parts that make up a chromosome are DNA and histone proteins.
Detailed explanation-3: -Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the cells of humans and other higher organisms.
Detailed explanation-4: -This is accomplished by wrapping the DNA around structural histone proteins, which act as scaffolding for the DNA to be coiled around. The entire structure is called a nucleosome, each of which includes an octamer of histone proteins and 146 to 147 base pairs of DNA.
Detailed explanation-5: -Histone proteins act like molecular spools that coil the strands of DNA into bead-like units called nucleosomes. A nucleosome contains eight histones wrapped by DNA, and serves as the repeated primary unit for organizing the higher levels of chromatin structure.