SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA
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Protein
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DNA & Proteins
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RNA
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Detailed explanation-1: -A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.
Detailed explanation-2: -DNA is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C). The nucleotides attach to each other (A with T, and G with C) to form chemical bonds called base pairs, which connect the two DNA strands.
Detailed explanation-3: -They carry the genetic blueprint of a cell in the form of deoxyribonucleic acid (DNA) and the instructions for the function of the cell in the form of ribonucleic acid (RNA). Chromosomes are composed of DNA arranged into genes and other non-coding areas.
Detailed explanation-4: -A single molecule of deoxyribonucleic acid and a protein make up each chromosome (DNA).
Detailed explanation-5: -In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females.