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Genes and Heredity

Quiz by Jacob Walston

Grade 8
Science (2021)
Texas Essential Knowledge and Skills (TEKS)

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18 questions
Show answers
  • Q1
    What role do genes play in determining the traits of offspring?
    Traits are determined solely by environmental factors.
    Genes have no effect on inherited traits.
    Genes only affect the color of flowers.
    Genes carry the information that is passed from parents to offspring, influencing their physical traits.
    30s
  • Q2
    Which of the following statements about chromosomes and genes is correct?
    Each chromosome contains only one gene.
    Genes are not found on chromosomes.
    Chromosomes are made entirely of proteins.
    Chromosomes are structures that contain many genes, which determine specific traits.
    30s
  • Q3
    How do inherited traits get passed from parents to offspring?
    Traits are passed through genes located on chromosomes during reproduction.
    Genes are destroyed during reproduction.
    Traits are passed through environmental factors only.
    Only physical appearance is inherited, not traits.
    30s
  • Q4
    What is the relationship between genes and traits in offspring?
    Genes influence the physical and behavioral traits of offspring by providing instructions for development.
    Traits are random and have no relation to genes.
    Only environmental factors determine traits.
    Genes have no impact on the traits of an organism.
    30s
  • Q5
    What specifically is a gene?
    A gene is a nutrient needed for growth.
    A gene is a type of chromosome.
    A gene is a segment of DNA that contains the instructions for making a specific protein.
    A gene is only found in plants.
    30s
  • Q6
    Which statement best describes the role of chromosomes in inheritance?
    Chromosomes carry genes that determine the inherited characteristics of an organism.
    Chromosomes do not play a role in passing traits.
    Each gene has its own chromosome and is not part of a larger structure.
    Chromosomes are only present in human cells.
    30s
  • Q7
    How are traits inherited from parents to offspring?
    Inherited traits can only be physical characteristics, not behaviors.
    Offspring receive traits randomly, with no influence from parents.
    Traits are solely determined by diet and environment.
    Traits are inherited through genes carried on chromosomes from both parents.
    30s
  • Q8
    What is the main function of genes found within chromosomes?
    Genes are responsible for a cell's energy production.
    Genes only determine an organism's lifespan.
    Genes provide the instructions for building and maintaining an organism's traits.
    Genes are involved in digestion and nutrient absorption.
    30s
  • Q9
    Which of the following best explains how genetic variation occurs in offspring?
    All offspring inherit identical genes from their parents.
    Genetic variation only happens in plants.
    Genetic variation occurs due to the combination of genes from both parents and potential mutations.
    Variation is solely caused by environmental changes.
    30s
  • Q10
    What do we call the physical expression of a gene in an organism?
    Phenotype
    Allele
    Chromosome
    Genotype
    30s
  • Q11
    What is the role of genes located on chromosomes in determining inherited traits in offspring?
    Genes carry the instructions for traits passed from parents to offspring
    Chromosomes only store energy for cell function
    Genes determine an individual's height regardless of environment
    Chromosomes are only involved in cell division and not heredity
    30s
  • Q12
    How do variations in genes affect the traits of offspring?
    Variations in genes can lead to different expressions of traits
    Variations in genes have no impact on traits
    Variations only occur in identical twins
    All traits are inherited exactly as they are from one parent
    30s
  • Q13
    What is the primary function of DNA within chromosomes regarding inheritance?
    DNA only helps in cell division
    DNA functions only in the brain
    DNA contains the genetic information that determines traits
    DNA provides energy for the cell
    30s
  • Q14
    Which of the following best explains why siblings can have different traits even though they share the same parents?
    They receive a different number of chromosomes from each parent
    They only inherit traits from their mother
    They inherit different combinations of alleles from their parents
    They are influenced solely by their environment without any genetic contribution
    30s
  • Q15
    What determines whether a trait is dominant or recessive?
    The environment in which an organism lives
    The age of the organism
    The number of chromosomes present in the cell
    The specific alleles that define the trait
    30s

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