Agriscience Unit 28 Genetics, Breeding, and Reproduction
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| Ova | female reproductive cells or eggs from the ovary of an animal
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| Sperm | male reproductive units
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| Zygot | fertilized egg
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| gene | a unit of hereditary material located on a chromosome
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| chromosome | the rod-like carrier for genes
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| gamete | a reproductive cell
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| dominant | gene that expresses itself to the exclusion of other genes
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| recessive | a gene that remains hidden and expresses itself only in the absence of a dominant gene
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| cell | a unit of protoplasmic material with a nucleus and cell walls
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| protoplasm | all of the contents within the walls of a living cell
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| nucleus | a cell structure that contains pairs of chromosomes on which genes are located at specific locations
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| cell membrane | a thin tissue surrounding the contents of a cell through which nutrients pass in and waste materials pass out
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| nuclear membrane | a protective membrane that forms a barrier surrounding the cell nucleus
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| lipid | fat droplets inside a cell
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| mitochondrion | plays a role in converting animal food to usable energy
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| ribosome | a cell structure that is responsible for synthesizing proteins
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| endoplasmic reticulum | a cell structure that stores proteins and facilitates their movement to other parts of the cell as needed
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| mitosis | simple cell division for growth
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| meiosis | cell division that results in the formation of gametes
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| deoxyribonucleic acid (DNA) | coded genetic material in a cell
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| homozygous | pairs of genes that are alike
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| heterozygous | pairs of genes that are different
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| incomplete dominance | neither gene expresses itself to the exclusion of the other
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| genotype | the genetic makeup of an individual or group of organisms
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| phenotype | physical appearance of an individual
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| sex-linked | genes carried on chromosomes that determine sex
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| mutation | change in genes
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| heritability | the capacity to be passed down from parent to offspring
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| testosterone | male sex hormone
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| estrogen | hormone that regulates the heat period
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| progesterone | hormone that prevents estrus during pregnancy and causes development of the mammary system
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| ovulation | process of releasing mature eggs from the ovary
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| fetus | embryo from time of attachment to the uterine wall until birth
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| gestation | length of pregnancy
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| inbreeding | mating animals that are related
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| semen | the sperms cells and accompanying fluids
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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