Biology
Grade-8
Easy

Question

You have 23 pairs of chromosomes. How many chromosomes do you have in total?

  1. 23
  2. 46
  3. 69
  4. 12

hintHint:

46 chromosomes or 23 pairs

The correct answer is: 46


    • We have 23 pairs of chromosomes. 
    • Means a total of 46 chromosomes.
    • 23 chromosomes are inherited from each parent ( not 23 pairs).
    • So, the correct option is b.

    Related Questions to study

    Grade-8
    Biology

    Genetic traits are determined by one or more

    Genetic traits are determined by one or more

    BiologyGrade-8
    Grade-8
    Biology

    A segment of DNA that codes for a trait

    A segment of DNA that codes for a trait

    BiologyGrade-8
    Grade-8
    Biology

    The passing of genetic traits from parent to offspring is called

    The passing of genetic traits from parent to offspring is called

    BiologyGrade-8
    parallel
    Grade-8
    Biology

    What is a short segment of a DNA strand that codes for our characteristics?

    What is a short segment of a DNA strand that codes for our characteristics?

    BiologyGrade-8
    Grade-8
    Biology

    From smallest to largest, how genetic information would be organized?

    ¶This question is based on genetic information and is explained further:
    1. Nucleotides: Nucleotides are the monomeric building blocks of nucleic acid polymers, deoxyribonucleic acid, and ribonucleic acid forms. Nucleotides follow genes.
    2. Genes: Genes are DNA regions that instruct cells on making proteins and are the fundamental physical and functional units of heredity. Because chromosomes contain genes, their organization is similar to that of chromosomes.
    3. Chromosomes: Chromosomes are threadlike structures inside the nucleus of animal and plant cells, made up of a single molecule of DNA and protein.
    4. Nucleus: The nucleus is the command center of the cell, sending instructions to the cell to grow, mature, divide, or die. It also contains the cell's hereditary material, DNA (deoxyribonucleic acid). The nuclear envelope protects the DNA and separates the nucleus from the rest of the cells.
    5. Cells: Cells are the basic building blocks of life. Human body is made up of a trillions of cells. They provide structural support to the body, absorb nutrients from food, convert them into energy, and perform specialized functions. In addition, cells can replicate themselves and contain the body's genetic material.

    From smallest to largest, how genetic information would be organized?

    BiologyGrade-8

    ¶This question is based on genetic information and is explained further:
    1. Nucleotides: Nucleotides are the monomeric building blocks of nucleic acid polymers, deoxyribonucleic acid, and ribonucleic acid forms. Nucleotides follow genes.
    2. Genes: Genes are DNA regions that instruct cells on making proteins and are the fundamental physical and functional units of heredity. Because chromosomes contain genes, their organization is similar to that of chromosomes.
    3. Chromosomes: Chromosomes are threadlike structures inside the nucleus of animal and plant cells, made up of a single molecule of DNA and protein.
    4. Nucleus: The nucleus is the command center of the cell, sending instructions to the cell to grow, mature, divide, or die. It also contains the cell's hereditary material, DNA (deoxyribonucleic acid). The nuclear envelope protects the DNA and separates the nucleus from the rest of the cells.
    5. Cells: Cells are the basic building blocks of life. Human body is made up of a trillions of cells. They provide structural support to the body, absorb nutrients from food, convert them into energy, and perform specialized functions. In addition, cells can replicate themselves and contain the body's genetic material.

    Grade-8
    Biology

    What are genes?

    What are genes?

    BiologyGrade-8
    parallel
    Grade-8
    Biology

    Where is DNA found in a human cell?

    Where is DNA found in a human cell?

    BiologyGrade-8
    Grade-8
    Biology

    Genetic material is primarily responsible for

    • Digestion is mechanical and chemical process.
    • Waste is removed from the body in various ways from kidneys, lungs, intestine etc.
    • Almost all enzymes are made up of protein.

    Genetic material is primarily responsible for

    BiologyGrade-8

    • Digestion is mechanical and chemical process.
    • Waste is removed from the body in various ways from kidneys, lungs, intestine etc.
    • Almost all enzymes are made up of protein.

    Grade-8
    Biology

    The inherited traits of an organism are governed by_____________.

    • Leukocytes are also known as WBC.
    • Cytoplasm is gelatinous liquid which filled the cell.
    • Enzymes are biological catalyst.

    The inherited traits of an organism are governed by_____________.

    BiologyGrade-8

    • Leukocytes are also known as WBC.
    • Cytoplasm is gelatinous liquid which filled the cell.
    • Enzymes are biological catalyst.

    parallel
    Grade-8
    Biology

    The traits of an organism are passed to its offspring on small coded strands of DNA material called

    • Heredity is the passing of genetic information and traits through genes.
    • Recessive trait is expressed only when genotype is homozygous.
    • Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half.

    The traits of an organism are passed to its offspring on small coded strands of DNA material called

    BiologyGrade-8

    • Heredity is the passing of genetic information and traits through genes.
    • Recessive trait is expressed only when genotype is homozygous.
    • Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half.

    Grade-8
    Biology

    Genes always appear in pairs. Your parents donate ________ allele for every trait.

    Genes always appear in pairs. Your parents donate ________ allele for every trait.

    BiologyGrade-8
    Grade-8
    Biology

    The thread like structure which appear inside the nucleus is

    Asters, spindle fibres and centrioles helps in cell division.

    The thread like structure which appear inside the nucleus is

    BiologyGrade-8

    Asters, spindle fibres and centrioles helps in cell division.

    parallel
    Grade-8
    Biology

    Segments of DNA are called _______________________.

    Segments of DNA are called _______________________.

    BiologyGrade-8
    Grade-8
    Biology

    The ends of the chromosome are called ___________.

    The ends of the chromosome are called ___________.

    BiologyGrade-8
    Grade-8
    Biology

    A segment of DNA that codes for a trait is ___________.

    A segment of DNA that codes for a trait is ___________.

    BiologyGrade-8
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.