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Mieosis
E. O'Connor
13
Science
7th Grade
02/10/2010

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Term
alleles
Definition
the different forms of a gene. y and y are different alleles of the gene that determines seed color
Term
dominant trait
Definition
a trait expressed preferentiallyover another trait
Term
f1 generation
Definition
offspring of a cross between true breeding plant, homozygous for the trait of interest
Term
f2 generation
Definition
offapring of a cross involving f1 generation
Term
geno type
Definition
the genetic consstitution of an organism with respect to a trait yellow seed are dominant but yellow seeded plants could have a genotype of either YY or Yy
Term
heterozygous
Definition
differing allels for a trait in an individual such as Yy
Term
homozygous
Definition
both allels for a trait in an individual they can be homozygous dominant YY or homozygous reseesive
Term
hybrid
Definition
heterozygous usually refering to the offspring of two true breeding individuals differing in traits of interest
Term
monohybrid
Definition
cross involving parents differing in only one trait
Term
mutation
Definition
change in dna sequenc of a gene to some new heritable form
Term
phenotype
Definition
the physical apperance of an organism with respact to a trait
Term
recessive trait
Definition
the opposite of dominant
Term
sex-linked
Definition
a gene coded on a seex chromosome such as the x-chromosome linked gene files of a man
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