reproduction

    Cards (49)

    • What are the main topics discussed in the video?
      DNA, chromosomes, genes, and genomes
    • What does DNA stand for?
      Deoxyribonucleic acid
    • What is DNA classified as?
      A polymer made of similar units
    • How many strands does DNA have?
      Two strands
    • What shape does DNA form?
      A double helix
    • If you unraveled DNA from a single cell, how long would it be?
      Over two meters long
    • How is DNA organized in a cell?
      Separated into 46 different sections
    • What are the tightly coiled sections of DNA called?
      Chromosomes
    • How many chromosomes does each human cell have?
      46 chromosomes
    • How many different types of chromosomes are there?
      23 different types
    • What do we call the pairs of chromosomes?
      Chromosome pairs
    • What are the sex chromosomes in humans?
      X and Y chromosomes
    • How do chromosomes appear before cell division?
      In an X shape
    • What is a gene?
      A small section of DNA coding for protein
    • What does a gene code for?
      A particular sequence of amino acids
    • How many different types of amino acids are there?
      20 different types
    • What determines the type of cell produced?
      The proteins the cell produces
    • What protein do red blood cells need to transport oxygen?
      Hemoglobin
    • What is a genome?
      The entire set of genetic material
    • How does an individual's genome compare to their parents' genomes?
      More similar to parents than strangers
    • What can scientists do with the complete human genome?
      Identify genes linked to diseases
    • What is an inherited disease?
      A disease caused by inherited genes
    • How can genes affect disease risk?
      They can increase the risk of diseases
    • What can doctors do by looking at genes?
      Choose more effective treatments
    • How can genomes help trace human migrations?
      By showing genetic differences between populations
    • What is the focus of the next video?
      Alleles, genotypes, and phenotypes
    • What is the focus of today's video?
      Different genetic terms and concepts
    • What is an allele?
      A different version of the same gene
    • What are the differences between dominant and recessive alleles?
      Dominant alleles are expressed over recessive ones
    • What does homozygous mean?
      Having two identical alleles for a gene
    • What does heterozygous mean?
      Having two different alleles for a gene
    • What is the relationship between genes and traits?
      Genes determine the characteristics we develop
    • How are traits determined by genes?
      Some traits are determined by a single gene
    • How do multiple genes affect characteristics?
      They interact to determine traits like height
    • What is the definition of a gene?
      A segment of DNA coding for a protein
    • What are alleles?
      Different forms of the same gene
    • How many copies of each gene do we have?
      Two copies, one from each parent
    • What does it mean if an organism is homozygous for an allele?
      Both alleles for that gene are the same
    • What does it mean if an organism is heterozygous for an allele?
      It has two different alleles for that gene
    • If a mouse is heterozygous for fur color with one allele for purple and one for green, what color will it be if purple is dominant?
      It will be purple
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