Term
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Definition
| the passing of traits from parents to offspring |
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Term
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Definition
| a feature that has different forms in a population |
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Term
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Definition
| the different forns available for a certain characteristic |
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Term
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Definition
| the trait that remains in a first-generation plant of parents with different traits |
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Term
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Definition
| the trait that seems to disappear in a first-generation plant of parents with different traits |
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Term
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Definition
| the set of instructions for an inherited trait |
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Term
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Definition
| the different forms that are available for a gene, usually one is dominant and one is recessive |
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Term
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Definition
| the appearance of an organism |
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Term
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Definition
| the entire genetic makeup of an organism; the combination of alleles for a specific trait |
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Term
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Definition
| when both alleles are the same (RR of rr) |
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Term
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Definition
| when an organism has one of each allele (Rr) |
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Term
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Definition
| a tool that is used to organize all of the possible combinations of offspring for a particular set of parents |
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Term
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Definition
| the mathematical chance that something will happen |
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Term
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Definition
| when an offspring has one parent and its genotype is identical to its parent's genotype |
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Term
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Definition
| when an offspring has two parents and its genotype is not identical to its parent's genotype |
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Term
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Definition
| the parent cells needed for sexual reproduction, they have one chromosome from each pair of homologous chromosomes |
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Term
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Definition
| the process of cell division that produces sex cells |
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Term
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Definition
| the pair of chromosomes that detemine the sex of an organism |
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Term
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Definition
| a tool that traces a trait through several generations of a family |
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Term
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Definition
| when organisms with desirable characteristics are mated to produce offspring with the wanted traits |
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Term
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Definition
| putting things into orderly groups based on similar characteristics |
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Term
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Definition
| the science of describing, naming, and classifying organisms |
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Term
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Definition
| the largest and most general group in the classification system |
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Term
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Definition
| a tool that is used to identify organisms; it consists of a series of paired questions |
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Term
| WHY ARE SO MANY SHADES OF EYE COLOR POSSIBLE? |
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Definition
| at least two different genes affect eye color so many shades of a single color are possible |
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Term
| HOW IS MEIOSIS DIFFERENT FROM MITOSIS? |
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Definition
| in mitosis, chromosomes are copied once and the nucleus divides once; in meiosis, chromosomes are copied only once but the nucleus divides twice |
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Term
| WHAT ARE THE RESULTS OF MEIOSIS? |
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Definition
| one cell produces four new cells and each new cell has only half of the chromosomes of the original cell |
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Term
| HOW IS THE SEX OF A PERSON DETERMINED? |
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Definition
| all egg cells have an X sex chromosome, some sperm cells have a Y sex chromosome and some have an X chromosome; after fertilization occurs, an XX combination is a female and an XY combination is a male |
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Term
| WHAT ARE THE 8 LEVELS OF ORGANIZATION (IN ORDER)? |
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Definition
| domain, kingdom, phylum, class, order, family, genus, species |
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Term
| WHAT ARE THE THREE DOMAINS? |
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Definition
| Archaea, Bacteria, and Eukarya |
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Term
| WHAT ARE THE 4 KINGDOMS OF EUKARYA? |
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Definition
| Protista, Fungi, Plantae, Animalae |
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Term
| WHAT ARE THE CHARACTERISTICS OF PROTISTS? |
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Definition
| single-celled or simple multicellular organisms that have a nucleus |
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Term
| WHAT ARE SOME EXAMPLES OF PROTISTS? |
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Definition
| protozoans, algae, slime mold, euglenoids, and amoebas |
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Term
| WHAT ARE THE CHARACTERISTICS OF FUNGI? |
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Definition
| organisms that can not move or make their own food, they get food by breaking down substances in their surroundings |
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Term
| WHAT ARE SOME EXAMPLES OF FUNGI? |
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Definition
| mushrooms, molds, athlete's foot, ringworm, yeast |
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Term
| WHAT ARE THE CHARACTERISTICS OF PLANTS? |
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Definition
| complex, multicellular organisms that can not move, make their own food, and have cell walls |
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Term
| WHAT ARE SOME EXAMPLES OF PLANTS? |
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Definition
| maple tree, grass, rose, wheat, carrot |
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Term
| WHAT ARE THE CHARACTERISTICS OF ANIMALS? |
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Definition
| multicellular organisms that can usually move around, depend on other organisms for food, and have specialized sense organs |
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Term
| WHAT ARE SOME EXAMPLES OF ANIMALS? |
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Definition
| cat, dog, rabbit, tiger, duck |
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