Book A Ch 4 Spelling/Vocabulary Test

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Questions: 10 | Attempts: 60

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Book A Ch 4 Spelling/Vocabulary Test - Quiz


Questions and Answers
  • 1. 

    Reproduction in which a new organism is produced when sex cells combine (2 words)

    Explanation
    The given answer, sexual reproduction, is correct because it accurately describes the process in which a new organism is produced when sex cells combine. This type of reproduction involves the fusion of male and female gametes, resulting in the creation of offspring with a combination of genetic traits from both parents.

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  • 2. 

    Cell that forms in fertilization (1 word)

    Explanation
    The correct answer is "zygote." A zygote is a cell that forms through the process of fertilization. When a sperm cell fertilizes an egg cell, they combine their genetic material to form a zygote, which is the earliest stage of development for a new organism. The zygote contains all the necessary genetic information to develop into a complete organism.

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  • 3. 

    The joining of an egg and sperm cell (1 word)

    Explanation
    Fertilization refers to the process of the egg and sperm cell joining together, resulting in the formation of a zygote. This is a crucial step in sexual reproduction, as it combines the genetic material from both parents to create a new individual. Fertilization typically occurs in the fallopian tubes of the female reproductive system, where the sperm cell penetrates the egg cell and their genetic material combines to form a fertilized egg.

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  • 4. 

    A nucleic acid which carries the code for making proteins from the nucleus to the ribosomes (abbreviation, all caps)

    Explanation
    RNA is the correct answer because it is a nucleic acid that carries the genetic code from the nucleus to the ribosomes. It acts as a messenger between DNA and the protein synthesis machinery in the ribosomes. RNA stands for ribonucleic acid and is essential for the process of protein synthesis in cells. It is transcribed from DNA and plays a crucial role in translating the genetic information into functional proteins. The abbreviation "RNA" is commonly used to represent this nucleic acid.

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  • 5. 

    Structures in the nucleus that contain hereditary material (1 word)

    Explanation
    Chromosomes are structures in the nucleus that contain hereditary material. They are made up of DNA and proteins, and they play a crucial role in carrying and transmitting genetic information from one generation to the next. Each chromosome contains genes, which are specific segments of DNA that determine an organism's traits and characteristics. During cell division, chromosomes condense and become visible under a microscope. Humans typically have 23 pairs of chromosomes, with one set inherited from each parent.

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  • 6. 

    Formation of two nuclei with identical chromosomes (diploid) (1 word)

    Explanation
    Mitosis is the process of cell division in which a single cell divides into two identical daughter cells, each containing the same number of chromosomes as the parent cell. During mitosis, the chromosomes are replicated and then separated into two nuclei, resulting in the formation of two diploid cells with identical chromosomes. Therefore, mitosis is the correct answer to the given question.

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  • 7. 

    Nuclear division that forms sex cells (haploid) (1 word)

    Explanation
    Meiosis is the correct answer because it is the nuclear division process that forms haploid sex cells. During meiosis, the number of chromosomes is reduced by half, resulting in the formation of gametes with half the genetic material of the parent cell. This process is essential for sexual reproduction, as it ensures genetic diversity by shuffling and recombining genetic information from both parents.

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  • 8. 

    Coded instructions that control cell activity (abbreviation) (all caps)

    Explanation
    The correct answer is DNA because DNA stands for deoxyribonucleic acid, which is a molecule that contains the genetic instructions for the development and functioning of all living organisms. It is responsible for controlling cell activity and determining an organism's traits. The abbreviation "dna" is not correct as it should be capitalized.

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  • 9. 

    Segment of DNA controlling production of one protein, also is what causes your hair color, eye color, etc. (1 word)

    Explanation
    The segment of DNA that controls the production of one protein and determines characteristics such as hair color and eye color is called a gene. Genes contain the instructions for making specific proteins, which in turn influence the traits and characteristics of an organism.

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  • 10. 

    Any permanent change in genetic material of a cell. (1 word)

    Explanation
    A mutation refers to any permanent change in the genetic material of a cell. This can involve alterations in the DNA sequence, such as substitutions, insertions, or deletions of nucleotides. Mutations can occur spontaneously or be induced by external factors such as radiation or chemicals. These changes in the genetic material can lead to variations in traits and can have various effects on an organism, ranging from no noticeable impact to significant changes in phenotype or even disease.

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