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Sience chap.11

Heredity and Genetics Vocab.

QuestionAnswer
adaptations the ability of a species to survive in a particular ecological niche, esp. because of alterations of form or behavior brought about through natural selection
body cells cells that play no direct part in fertilization
dominant character inherited trait that overshadows the recessive trait and keeps it from showing in a hybrid
dominant genes genetic material that controls the dominant character traits
flagellum the whiplike tail that forms on a sperm cell, enabling it to move
genetics the science that studies heredity
heredity passong on of traits, or characteristics, from parent to offspring
hybrids offspring of a cross of parents having contrasting traits; contain two unlike genes for a trait, and exhibit the dominant trait
incomplete dominance blending inheritance; appearance of offspring is a mixture of the parents' contrasting traits
meiosis special kind of cell division that forms sex cells
purebred offspring are just like the parents in possessing two of the same genes for a trait
recessive character inherited teait that is overshadowed by a do,inant trait and is kept from showing in a hybrid
recessive genes genes for a recessive trait; overshadowed by dominant genes
reduction division cell division in which each new cell receives one-half the species number of chromosomes; occurs during formation of sex cells
species number number of chromosomes characteristic of the body cells of a species
variations differences that exist among all orfanisms of the same species
Created by: daisy37311
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