Glossary
- adaptations
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Heritable traits that improve survival and reproduction in a given environment
- adenosine triphosphate (ATP)
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The cell’s energy currency
- aerobic cellular respiration
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definition
- allele frequency
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Rate at which a specific allele appears within a population.
- alleles
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A gene variation.
- amino acid
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A monomer of a protein.
- autosomal recessive
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A description of a genetic trait or condition that can be passed down from parent to child. The trait is recessive located on a autosomal chromosome.
- byproducts
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A substance produced during a biochemical process but is not the primary or intended product of that process
- cancellation method
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A mathematical process used to converting measurements between units by systemically eliminating units in calculations.
- carbon dioxide (CO₂)
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A colorless, odorless gas
- cellular
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The fundamental unit of life; a plasma membrane surrounding cytoplasm containing other structures, such as DNA
- cellular respiration
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The process by which cells convert chemical energy from glucose (C6H12O6) into usable energy (ATP)
- chemical equation
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A symbolic representation of a chemical reaction
- chemical reaction
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A process leading to rearranging atoms in molecules.
- citric acid cycle
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A series of enzyme-catalyzed chemical reactions of central importance in all living cells for extraction of energy from carbohydrates; Als known as the Kreb Cycle.
- codon
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Three consecutive nucleotides in mRNA that specify the insertion of an amino acid or the release of a polypeptide chain during translation
- control group
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Group of data points, observations, or subjects that Is not exposed to the condition that is being studied but otherwise treated identically to the experimental group.
- Deoxyribonucleic acid (DNA)
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Double-helical molecule that carries the cell's hereditary information.
- dependent variable
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A factor that is an effect that can be observed and measured which may be caused by the independent variable.
- diploid
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A cell, nucleus, or organism containing two sets of chromosomes (2n).
- electron transport chain
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A group of proteins that pass energized electrons and use the energy released by the electrons to move hydrogen ions against their concentration gradient.
- enzyme
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A catalyst in a biochemical reaction that is usually a complex or conjugated protein.
- epidemiological
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A branch of medicine that studies incidence, distribution and possible control of diseases and other factors relating to health
- evolution
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A genetic change in populations across generations over a period of time.
- experimental group
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Group of data points, observations, or subjects that Is exposed to the condition that is being studied but otherwise treated identically to the control group.
- fertilization
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The process where a sperm units with an egg (ovum) which results in a zygote.
- fitness
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Organism’s ability to survive and reproduce.
- gene
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A physical and functional unit of heredity, a sequence of DNA that codes for a protein.
- gene expression
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The process that produces function protein or ribonucleic acid (RNA) from a gene.
- gene pool
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All the alleles that the individuals in the population carry
- gene regulation
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The process that induces or represses the expression of a gene
- genetic
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The study of genes, genetic variation, and heredity in organisms
- genetics
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The study of genes, genetic variation, and heredity in organisms.
- genome
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A cell, nucleus, or organism complete set of chromosomes.
- genotype
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The genetic makeup for a particular trait in an organism.
- glucose (C6H12O6)
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A monomer of a carbohydrate; simple carbohydrate.
- glycolysis
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A process of breaking glucose into two three-carbon molecules with the production of ATP and NADH.
- graph
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A visualization to present, interpret, and summarize data.
- heart rate
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The number of times your heart beats per minute.
- hereditary
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The passing of traits from one generation to another.
- heterozygous
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Having two different alleles for a given gene on the homologous chromosome.
- hypothesis
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A proposed explanation of a phenomenon within the natural world.
- imperial system
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A decimal system of weights and measurements that is historically used in the British Empire.
- independent variable
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A factor that may cause an effect that can be observed and measured in the dependent variable.
- International System of Units [SI]
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A decimal system of weights and measurements in which the basic units are meter (m) for length, gram (g) for mass, and liter (l) for volume.
- macroevolution
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Broader scale evolutionary changes that scientists see over paleontological time.
- macromolecule
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Large molecule made up of small building blocks or subunits.
- mean
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The average of the set of numbers.
- median
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The middle number of a set when the data is arranged in ascending or descending order.
- metric system
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A decimal system of weights and measurements in which the basic units are meter (m) for length, gram (g) for mass, and liter (l) for volume.
- microevolution
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Changes in a population’s genetic structure
- mode
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The most frequently occurring number in the data set.
- mutation
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A variation in the nucleotide sequence of a genome.
- natural selection
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Reproduction of individuals with favorable genetic traits that survive environmental change because of those traits, leading to evolutionary change
- nucleotide
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A monomer of nucleic acids; contains a pentose sugar, one or more phosphate groups, and a nitrogenous base
- oxygen (O₂)
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A chemical element.
- percentage (%) change
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The relative difference between an old value and a new value, as a percentage of the original value
- phenotype
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The observable trait expressed in an organism.
- photosynthetic
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A chemical process that converts light energy into chemical energy.
- prediction
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The expected results of an experiment.
- prefixes
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A word or letter placed before another word; A word before the base unit to measure quantity larger or smaller than the base unit.
- protein
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A biological macromolecule comprised of one or more amino acid chains.
- Punnett Square
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A visual representation of a cross between two individuals in which the gametes of each individual are denoted along the top and side of a grid, respectively, and the possible zygotic genotypes are recombined at each box in the grid
- random sampling
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A technique used to select a subset of individuals or observations from a larger population in such a way that every member has an equal chance of being chosen.
- red blood cell
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A small (7–8 μm) biconcave cell without mitochondria (and in mammals without nuclei) that is packed with hemoglobin, giving the cell its red color; transports oxygen through the body
- reproductive success
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Individual's production of offspring per breeding attempt or lifetime
- ribonucleic acid (RNA)
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A single-stranded, often internally base paired, molecule that is involved in protein synthesis.
- ribosomes
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A cellular structure that carries out protein synthesis.
- RNA polymerase
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An enzyme that produces RNA that is complementary to the DNA template
- sample size
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The number of data points, observations, subjects, or replicates that are collected in each control and experimental group.
- scientific method
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A comprehensive and flexible process of examination and discovery of natural phenomena.
- scientific notation
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A represent numbers by using significant digits multiplied by 10 raised to power or exponent.
- sickle cell anemia
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A genetic disorder that affects the shape of red blood cells, and their ability to transport oxygen and move through capillaries.
- standard deviation
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The spread of the data is around the mean and indicates the level of variability within the dataset.
- statistics
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A discipline of mathematics that deals with interpreting, analyzing, and organizing data in order to identify patterns, make informed decisions, and draw conclusions.
- transcription
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The process through which messenger ribonucleic acid (RNA) forms on a template of deoxyribonucleic acid (DNA)
- translation
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The process through which ribonucleic acid (RNA) directs the protein's formation.
- tRNA
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A RNA that carries activated amino acids to the site of protein synthesis on the ribosome.
- variable
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A factor, trait, or condition that can be controlled, changed, or measured in an experiment.
- X-axis
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The horizontal axis of a graph.
- Y-axis
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The vertical axis of a graph.