Science Test terms
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Mitosis | cell process in which the nucleus divides to form two nuclei identical to each other, and identical to the original nucleus, in a series of steps (prophase, metaphase, anaphase, and telophase).
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| Chromosome | Structure in a cell's nucleus that contains hereditary material.
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| Asexual Reproduction | a type of reproduction - fission, budding, and regeneration - in which a new organism is produced from one organism and has DNA identical to the parent organism.
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| Sexual reproduction | a type of reproduction in which two sex cells, usually an egg and a sperm, join to form a zygote, which will develop into a new organism with a unique identity.
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| Sperm | haploid sex cell formed in the male reproductive organs; in humans, males reproductive cells produced in the testes.
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| Egg | haploid sex cell formed in the female reproductive organs.
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| Fertilization | in sexual reproduction, the joining of a sperm and an egg
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| Zygote | new diploid cell formed when a sperm fertilizes an egg; will divide by mitosis and develop into a new organism.
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| Diploid | cells whose similar chromosomes occur in pairs.
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| Haploid | cell that is half the number of chromosomes as body cells.
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| Meiosis | reproductive process that produces four haploid sex cells from one diploid cell and ensures offspring will have same number of chromosomes as the parent organism.
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| DNA | deoxyribonucleic acid; the genetic material of all organisms; made up of two twisted strands of sugar-phosphate molecules and nitrogen bases.
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| Gene | section of DNA on a chromosome that contains instructions for making specific proteins.
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| RNA | ribonucleic acid, a type of nucleic acid that carries codes for making proteins from the nucleus to the ribosomes.
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| Mutation | any permanent change in a gene or chromosome of a cell; may be beneficial, harmful, or have little affect on an organism.
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| Cytokinesis | the division of the cell cytoplasm that usually follows mitotic division of the nucleus.
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| Mitosis | cell process in which the nucleus divides to form to nuclei identical to each other, and identical to the original nucleus, in a series of steps (prophase, metaphase, anaphase, and telophase)(PMAT)
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| Homologous | body parts that are similar in structure and origin and can be similar in function.
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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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