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Chapter 18 Biology

True/False
Indicate whether the statement is true or false.
 

 1. 

dominant allele ? an allele that it's trait is only expressed when it is present with another recessive allele
 

 2. 

dihybride cross ? a cross in which  traits are studied
 

 3. 

recessive allele ? allele that is expressed when it present with a recessive allele
 

 4. 

phenotype ? the physical appearance (trait) that the organism displays
 

 5. 

monohybride cross ? a cross in which w traits are studied
 

 6. 

law of segregation ? the science that involves studying patterns of inheritance
 

 7. 

law of independent assortment ? when gametes are maade the genes for traits found on different chromosomes seperate independently
 

 8. 

purebred ? genetically indentical offspring produced through self pollenation
 

 9. 

genetics ? the alleles that an organism inheerits from its parent
 

 10. 

homozygous ? when and oprganism has two dominant or two recessive alleles for a trait
 

 11. 

alleles ? the science that involves studying patterns of inheritance
 

 12. 

heterozygous ? when and oprganism has two dominant or two recessive alleles for a trait
 

 13. 

probability ? genetically indentical offspring produced through self pollenation
 

 14. 

genotype ? the physical appearance (trait) that the organism displays
 



 
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