Chapter 11 Vocabulary Flashcards
(27 cards)
Process in sexual reproduction my mail and female reproductive cells come together and make a new one
Fertilization
Term that describes organisms that produce offspring that is exactly the same, is allowed to self pollinate
True breeding
Specific characteristics of difference from one individual to another
Traits
Offspring of crosses between parents with different traits
Hybrid
Order of DNA that codes for a protein and determines a trait
Gene
One of a number of different forms of a gene
Allele
Separation of alleles during gamete formation
Segregation
Specialized cell involved in sexual reproduction
Gamete
Likelihood that a particular event will occur
Probability
A diagram that shows the gene combinations that could result from a genetic cross
Punnett square
Term that refers to an organism that has two of the exact same alleles for a particular trait
Homozygous
Term used to refer to an organism that has two different alleles for the same trait
Heterozygous
Physical characteristics of an organism
Phenotype
Genetic makeup of an organism
Genotype
Independent segregation of genes during the formation of gametes
Independent assortment
Situation when one allele is not completely dominant over the other
Incomplete dominance
Situation in which both alleles of a gene contribute to the phenotype of the organism
Codominance
Three or more alleles of the same gene
Multiple alleles
Trait controlled by two or more genes
Polygenic traits
Term used to refer to chromosomes that each have a corresponding chromosome from the opposite sex parent
Homologous
Term used to refer to a cell that contains both sets of homologous chromosomes
Diploid
Term used to refer to a cell that contains only a single set of chromosomes and therefore only a single set of genes
Haploid
Process by which the number of chromosomes Purcell is cut in half through the separation of homologous chromosomes in a diploid cell
Meiosis
Structure containing four chromatids the forms during meiosis
Tetrad