Science Ch 6 Vocab
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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| Artificial insemination | a reproductive technology that includes collecting sperm from a male and injecting it into a female.
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| Assisted reproductive Technologies | technologies that are used to achieve fertilization and pregnancy.
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| Blastula | A hollow ball of cells about 1.5 mm in diameter that forms after the second week of embryonic development.
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| crossing over | an event in meiosis I in which sister chromatids exchange DNA
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| differentiation | in humans the process in which cell layers will eventually form the organs and tissues of a baby.
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| ectoderm | the outside layer of the gastrula.
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| embryo | the stage of a multicellular organism that develops from a zygote.
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| embryonic development | early development of a multicellular organisms body cells.
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| endoderm | the inner layer of the gastrula.
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| external fertilization | fertilization in which a sperm cell and an egg cell unite outside the bodies of the parents.
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| fertilization | the process during which an egg cell is penetrated by a sperm cell and the haploid genetic information of both male and female gametes combines.
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| fetus | the stage of a multicellular organism that develops from an embryo.
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| gametes | specialized cells necessary for reproduction.
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| gastrula | the stage of a developing embryo in which the cells of the blastula organize into three layers.
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| genetic diversity | inherited genetic differences in a species that give many organisms a survival advantage.
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| haploid number | each set of inherited chromosomes, half the diploid number.
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| homologous chromosomes | a pair of matching chromosomes
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| in vitro fertilization (IVF) | technology used to treat specific fertility problems by fertilizing an egg cell in a petri dish.
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| independent assortment | an event in meiosis I in which homologous pairs of chromosomes separate and sort themselves into daughter cells.
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| internal fertilization | fertilization in which sperm cells are deposited inside the female’s body where they meet egg cells.
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| karyotype | a photomicrograph that shows the number of chromosomes a person has, as will as their size and shape, prepared by cutting and pasting chromosomes taken from body cells during mitosis.
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| mating | the process by which gametes arrive in the same place at the same time.
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| meiosis | the process that produces gametes with half the number of chromosomes as body cells.
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| mesoderm | the middle layer of the gastrula.
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| morula | a ball of cells of about 0.2 mm in diameter that forms after the first week of embryonic development.
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| ovules | the female plant structures that contain the egg cells
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| pollen | plant structures celled grains that carry the sperm cells in a protective case to the ovules.
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| pollen tube | a structure that delvers sperm cells to egg cells in plants.
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| pollination | the transfer of male gametes in pollen from the male reproductive part of a plant to the female reproductive part of a plant.
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| sexual reproduction | reproduction that requires two parents and produces offspring that are genetically different from each other, from either parent, and from any other member of their species.
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| syndrome | a particular disease or disorder with a specific group of symptoms that occur together.
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| zygote | the new diploid cell formed by the process of fertilization, which receives half its chromosomes fro its female parent and half from its male parent.
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To hide a column, click on the column name.
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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