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biology genetic

QuestionAnswer
genes specific units on a chromosome that carry individual traits
phenotype the physical appearance of an organism
dominant the form of a gene that is expressed while preventing the expression of another gene
homozygous term used when the two genes for a specific trait are identical
deoxyribonucleic acid chromosomes are made of this material (2 words)
selective breeding crossing of plants and animals to produce specific traits in the offspring (2 words)
zygote for a particular trait, this organism has 2 different alleles
Punnett square a chart that can be used in determining the possible combinations of genes among offspring of a genetic cross (2 words)
gene pool all the genes of a given population (2 words)
Gregor Mendel he laid down the basic foundation for the science of genetics 92 words)
heterozygous term used when the 2 genes for a specific trait are not identical
forty six number of chromosomes in a human body cell
mutation a change in a gene
recessive gene that is not expressed due to the influence of a dominant gene
genotype the genetic makeup of an organism
polygenic????? type of inheritance in which traits are controlled by several pairs of genes
alleles ???? different forms of a gene for a specific trait such as height
????????? an organism whose alleles for traits are identical
Created by: mamarobn
 

 



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