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Chapter 14pg.352

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Autosome   In humans, chromosomes 1-22. Matching pairs of chromosomes.  
carrier   A heterozygous individual who appears normal, but genotypically possesses a recessive gene for a potentially harmful gene.  
codominant alleles   Equal expression causes the phenotypes of both homozygous parent organisms to be produced in the heterozygous offspring.  
hybrid   Offspring produced when two varieties or closely related individuals are mated;often done to increase size or vigor.  
inbreeding   Mating between closely related individuals to produce pure results;however it sometimes can have undesirable results.  
incomplete dominance   the inheritance pattern in which the phenotype of the heterozygote is intermediate to the two homozygous parents. Neither allele is strong enough to mask the other, so they combine.  
multiple alleles   Some organisms such as flowers or rabbits can come in many different colors.The genetic trait for color is said to have this.  
pedigree   A family tree; A graphic representation showing patterns of inheritance in a family or breeding group.  
polygenic inheritance   A trait such as skin color which is affected by the combination of several different genes.  
sex chromosome   In humans, Chromosome pair 23.;XX or XY  
sex-linked trait   An inherited characteristic, such as color blindness, controlled by genes located on chromosomes 23.  
testcross   A breeding technique used to determine if an individual is homozygous dominant or heterozygous for a particular trait.  


   


 

 

 

 

 

 
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