Genes And Chromosomes Test! Trivia Quiz

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Genes And Chromosomes Test! Trivia Quiz - Quiz


Do you know anything about genes? Do you suppose you can get through this quiz? Gene is a fraction of the DNA strand, while the chromosome is the whole strand of DNA. There are more chromosomes than genes in the human body. Genes exist in specific locations on chromosomes are structures within cells that contain a person’s genes. Take on this quiz to see how much you know about genes and chromosomes.


Questions and Answers
  • 1. 

    Genes are...

    • A.

      Found in the cytoplasm of a cell

    • B.

      Found on chromosomes

    • C.

      Found in the cell wall

    Correct Answer
    B. Found on chromosomes
    Explanation
    Genes are found on chromosomes because chromosomes are structures within the cell nucleus that carry genetic information in the form of DNA. Genes are specific segments of DNA that contain instructions for the synthesis of proteins and other molecules necessary for cell functioning. Chromosomes consist of long strands of DNA tightly coiled and organized, and genes are located at specific positions along these chromosomes. Therefore, genes are not found in the cytoplasm or the cell wall, but rather on chromosomes.

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  • 2. 

    Chromosomes are made of  __________  and proteins.

    • A.

      Fats

    • B.

      DNA

    • C.

      Carbs

    • D.

      None of the above

    Correct Answer
    B. DNA
    Explanation
    Chromosomes are made of DNA (deoxyribonucleic acid) and proteins. DNA is the genetic material that carries the instructions for the development, functioning, growth, and reproduction of all living organisms. Proteins, such as histones, help in organizing and packaging the DNA into a compact structure, allowing it to fit within the cell's nucleus. Together, DNA and proteins form the chromatin fiber, which further condenses to form chromosomes during cell division.

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  • 3. 

    CHROMOSOMES are found in the ...

    • A.

      Nucleus of a cell

    • B.

      Bottom of a cell

    • C.

      Wall of a cell

    • D.

      Cell membrane

    Correct Answer
    A. Nucleus of a cell
    Explanation
    Chromosomes are found in the nucleus of a cell. The nucleus is a membrane-bound organelle that contains the genetic material of the cell, including the chromosomes. Chromosomes are structures made up of DNA and proteins, and they carry the hereditary information that is passed on from one generation to another. They play a crucial role in cell division and the transmission of genetic traits. Therefore, it is accurate to say that chromosomes are found in the nucleus of a cell.

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  • 4. 

    DNA  is...

    • A.

      A very long molecule

    • B.

      A very short molecule

    Correct Answer
    A. A very long molecule
    Explanation
    DNA is a very long molecule because it is made up of two strands of nucleotides that are twisted together in a double helix structure. Each strand can be several million base pairs long, which allows DNA to store and transmit a large amount of genetic information. The length of DNA is essential for its function in encoding the instructions for building and maintaining an organism.

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  • 5. 

    One long DNA molecule is found in each _________________.

    • A.

      Nucleus

    • B.

      Chloroplast

    • C.

      Chromosome

    Correct Answer
    C. Chromosome
    Explanation
    A chromosome is a structure found in the nucleus of a cell that contains a long DNA molecule. This DNA molecule carries genetic information and is responsible for the inheritance of traits. Chromosomes are present in the nucleus of both eukaryotic cells (such as animal and plant cells) and prokaryotic cells (such as bacteria). Therefore, the correct answer is chromosome.

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  • 6. 

    How many chromosomes do humans have in their body cells?

    • A.

      48

    • B.

      46

    • C.

      50

    Correct Answer
    B. 46
    Explanation
    Humans have 46 chromosomes in their body cells. Chromosomes are structures that contain DNA and are responsible for carrying genetic information. Each human body cell contains 23 pairs of chromosomes, with one chromosome from each pair inherited from each parent. Therefore, the correct answer is 46.

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  • 7. 

    Which sex chromosomes does a boy have? 

    • A.

      Two X chromosomes

    • B.

      Two Y chromosomes

    • C.

      An X and a Y

    Correct Answer
    C. An X and a Y
    Explanation
    A boy has an X and a Y chromosome. This is because males have one X chromosome inherited from their mother and one Y chromosome inherited from their father. The presence of the Y chromosome determines the development of male characteristics, while the X chromosome carries genetic information for various traits.

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  • 8. 

    Which answer is in order from SMALLEST to BIGGEST?

    • A.

      Gene, chromosome, cell

    • B.

      Chromosome, gene, cell

    • C.

      Nucleus, gene, chromosome

    Correct Answer
    A. Gene, chromosome, cell
    Explanation
    The correct answer is gene, chromosome, cell. This is because a gene is the smallest unit of heredity, followed by a chromosome which is a structure that carries genes, and finally a cell which is the basic unit of life and contains chromosomes.

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  • Current Version
  • Feb 25, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 06, 2009
    Quiz Created by
    Hrobinson
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