Ch 8: Reproduction & Heredity

19 terms by kariathey

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the process by which a cell produces two new identical nuclei

cell division

the dividing of a cell following mitosis

asexual reproduction

reproduction by one parent and offspring are genetically identical to the parent

sexual reproduction

reproduction by two parents

sex cell

a type of cell produced only by an organism that reproduces sexually


process by which sex cells form


the joining of an egg cell and a sperm cell during sexual reproduction


the first cell of an offspring, formed when an egg cell and a sperm cell join


a characteristic of an organism


the molecule in each cell that directs the cell's activities


a section of DNA on a chromosome that controls a trait


one kind of molecule that makes up a DNA strand


the process by which traits are passed from parents to offspring


to receive from one's mother or father

dominant gene

a gene that prevents the expression of another gene

recessive gene

a gene whose expression is prevented by a dominant gene


an organism with two dominant or two recessive genes for a trait


an organism with one dominant and one recessive gene for a trait


a permanent change in DNA that occurs when DNA copies itself

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