Genetics For 7th Grade Science Last Quiz

22 Questions  I  By Lippman
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7th Grade Quizzes & Trivia
Science 7th grade Genetics

  
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  • 1. 
    The stage of the cell cycle during which the cells nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell
    • A. 

      Trait

    • B. 

      Mitosis

    • C. 

      Homozygous

    • D. 

      Heterozygous


  • 2. 
    The different forms of a gene
    • A. 

      Trait

    • B. 

      Allele

    • C. 

      Mitosis

    • D. 

      Chromosome


  • 3. 
    A rod-shaped cellular structure made of condensed chromatin; contains DNA, which carries the genetic information that controls inherited characteristics such as eye color and blood type
    • A. 

      Trait

    • B. 

      Chromosome

    • C. 

      Genotype

    • D. 

      Phenotype


  • 4. 
    A condition in which neither of two alleles of a gene is dominant or recessive
    • A. 

      Codominence

    • B. 

      Heterozygous

    • C. 

      Homozygous

    • D. 

      Selective breeding


  • 5. 
    An allele whose trait always shows up in the organism when the allele is present
    • A. 

      Codominance

    • B. 

      Dominant

    • C. 

      Trait

    • D. 

      Probability


  • 6. 
    An allele that is masked when a dominant allele is present
    • A. 

      Dominant

    • B. 

      Trait

    • C. 

      Recessive

    • D. 

      Selective breeding


  • 7. 
    A segment of DNA on a chromosome that codes for a specific trait
    • A. 

      Allele

    • B. 

      Gene

    • C. 

      Chromosome

    • D. 

      Trait


  • 8. 
    The scientific study of heredity
    • A. 

      Codominance

    • B. 

      Meiosis

    • C. 

      Genetics

    • D. 

      Heredity


  • 9. 
    An organism's genetic makeup or allele combinations
    • A. 

      Codominance

    • B. 

      Genotype

    • C. 

      Pure bread

    • D. 

      Heredity


  • 10. 
    The passing of traits from parents to offspring
    • A. 

      Codominance

    • B. 

      Heredity

    • C. 

      Trait

    • D. 

      Probilbility


  • 11. 
    An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait
    • A. 

      Trait

    • B. 

      Hybrid

    • C. 

      Heterozygous

    • D. 

      Homozygous


  • 12. 
    Having two different alleles for a trait
    • A. 

      Homozygous

    • B. 

      Trait

    • C. 

      Phenotype

    • D. 

      Heterozygous


  • 13. 
    An organism's physical appearance or visible traits
    • A. 

      Trait

    • B. 

      Phenotype

    • C. 

      Heredity

    • D. 

      Mutations


  • 14. 
    The process of selecting a few organisms with desired traits to serve as parents of the next generation
    • A. 

      Codominance

    • B. 

      Genetics

    • C. 

      Trait

    • D. 

      Selective breeding


  • 15. 
    Having two identical alleles for a trait
    • A. 

      Heterozygous

    • B. 

      Codominance

    • C. 

      Homozyous

    • D. 

      Mitosis


  • 16. 
    The process that occurs in sex cells by which the number of chromosomes is reduced by half
    • A. 

      Mitosis

    • B. 

      Meiosis

    • C. 

      Condominance

    • D. 

      Punnet square


  • 17. 
    The stage of the cell cycle during which the cells nucleus divides into two new nuclei and one copy of the DNA is distributed into each daughter cell
    • A. 

      Codominance

    • B. 

      Mitosis

    • C. 

      Meiosis

    • D. 

      Probability


  • 18. 
    A change in a gene or chromosome
    • A. 

      Phenotype

    • B. 

      Mutations

    • C. 

      Meiosis

    • D. 

      Mitosis


  • 19. 
    A characteristic that an organism can pass onto its offspring through its genes
    • A. 

      Mutation

    • B. 

      Heredity

    • C. 

      Trait

    • D. 

      Gene


  • 20. 
    A chart that shows all the possible combinations of alleles that can result from a genetic cross
    • A. 

      Mitosis

    • B. 

      Punnett square

    • C. 

      Meiosis

    • D. 

      Selective breeding


  • 21. 
    An organism that always produces offspring with the same from of a trait as the parent
    • A. 

      Selective breeding

    • B. 

      Pure breed

    • C. 

      Genetics

    • D. 

      Recessive


  • 22. 
    A likelihood that a particular event will occur
    • A. 

      Pure breed

    • B. 

      Probability

    • C. 

      Selective breeding

    • D. 

      Codominance


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