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Genetics and Heredity
$200The physical appearance of an organism resulting from its genotype.
$400An organism with two identical alleles for a specific trait.
$600The specific location of a gene on a chromosome.
$800A cross that follows two traits simultaneously.
$1000A graphic representation of an individual's chromosome complement.
Evolutionary Biology
$200The process by which organisms better adapted to their environment tend to survive and produce more offspring.
$400Structures in different species that are similar because of common ancestry.
$600A sudden reduction in population size due to environmental change, reducing genetic variation.
$800The formation of new and distinct species in the course of evolution.
$1000The movement of genes into or out of a population due to migration.
Molecular Biology
$200The pentose sugar found in DNA nucleotides.
$400The enzyme responsible for unwinding the DNA double helix.
$600The three-nucleotide sequence on mRNA that codes for an amino acid.
$800Segments of eukaryotic DNA that do not code for proteins and are removed during RNA processing.
$1000A mutation that changes a codon to a stop codon, terminating translation early.
Photosynthesis
$200The primary photosynthetic pigment in plants.
$400The fluid-filled space within the chloroplast where the Calvin cycle occurs.
$600The flattened, sac-like membranes where light-dependent reactions take place.
$800The electron carrier produced in the light reactions used in the Calvin cycle.
$1000The enzyme that catalyzes the first step of the Calvin cycle by fixing carbon dioxide.
Cellular Processes
$200The organelle responsible for generating ATP via cellular respiration.
$400The passive movement of molecules from high to low concentration.
$600The phase of mitosis where chromosomes align at the cell equator.
$800The protein structure that acts as a gatekeeper for substances entering the cell.
$1000The process by which a cell engulfs large particles or whole cells.
Ecology and Systems
$200An organism that produces its own food through photosynthesis.
$400The total variety of all life forms in a specific ecosystem.
$600A relationship where both species benefit from the interaction.
$800The maximum population size an environment can support.
$1000The gradual process by which ecosystems change and develop over time.