DNA and Chromosomes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Bacteriophage | A bacteriophage is a virus that infects and replicates within a bacterium.
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| Nucleotide | The small units, or monomers, that make up DNA are called
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| Double Helix | Structure formed by double-stranded molecules of nucleic acids such as DNA
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| Base Paring Rules | A with T and C with G
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| Replication | A group of enzymes that bond new nucleotides together
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| DNA Polymerase | states that information flows in one direction
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| Somatic Cell | body cells. make up most of your body tissue and organs
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| Gametes | sex cells.
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| Homologous Chromosome | two chromosomes...one from the mom and one form the dad
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| Autosome | chromosomes that contain genes for characteristics not directly related to the sex of an organism
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| Sex Chromosome | directly control the development of characteristics
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| Sexual Reproduction | fusion of two gametes that result in offspring
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| Fertilization | actual fusion of an egg and sperm
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| Diploid | a cell has two copies of each chromosomes
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| Haploid | has only one copy of each chromosome
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| Meiosis | a form of nuclear division that divides a diploid cell into haploid cells
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| Gametogenesis | the production of gametes
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| Sperm | the male gamete
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| Egg | the female gamete
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| Polar Body | other cells produced by meiosis
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| Cell cycle | is the regular pattern of growth, DNA duplication, and cell division in eukaryotic cells
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| Mitosis | the division of the cell nucleus and its contents
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| Cytokinesis | is the process that divides the cell cytoplasm
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| Chromosomes | is one long continuous thread of DNA that consists of numerous genes along with regulatory information
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| Histones | group of proteins
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| Chromatin | loose combination of DNA and proteins
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| Chromatid | on half of a duplicated chromosome
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| Centromere | a region of the condensed chromosome that looks pinched
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