luke 11 vocab bio

20 terms by luke-44

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genetics

The scientific study of heredity

fertilization

process in sexual reproduction in which male and female reproduction cells join to form a new cell

true-breeding

term used to describe organisms that produce offspring identical to themselves if allowed to self-pollinate

trait

specific characteristic that varies from one individual to another

hybrid

the offspring of crosses between parents with different traits

gene

sequence of DNA that codes for a protein and thus determines a trait

allele

one of a number of different forms of a gene

segregation

separation of alleles during gamete formation

gamete

specialized cell involved in sexual reproduction

probability

likelihood that a particular event will occur

punnett square

diagram showing the gene combinations that might result from a genetic cross

homozygous

term used to refer to an organism that has two identical alleles for a particular trait

heterozygous

term used to refer to an organism that has two different alleles for the same trait

phenotype

physical characteristics of an organism

genotype

genetic makeup of an organism

independent assortment

independent segregation of genes during the formation of gametes

incomplete dominance

situation in which one allele is not completely dominant over another

codominance

situation in which both alleles of a gene contribute to the phenotype of the organism

multiple alleles

three or more alleles of the same gene

polygenic traits

traits controlled by 2
or more genes

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