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genicts

terms

QuestionAnswer
heredity is the passing of physical characteristics from parents to offspring
trait each different form of a characteristic,such as stem height or seed color
genetics is the scientific study of heredity
fertilization a new organism begins to form when egg and sperm join in the process
purebred organism is the offspring of many generations that have the same trait
gene the factors that control a trait
alleles are the different forms of a gene
dominant allele is one whose trait always shows up in the organism when the allele is present
recessive allele is hidden whenever the dominant allele is present
hybrid organism that has two different alleles for a trait
probability to predict the results of a particular event
punnett square a tool that can help you understand how the laws probability apply to genetics
phenotype two useful terms that geneticists
genotype is it's genetic makeup.or allele combinations
homozygous an organism that has two identical alleles for a trait
heterozygous an organism that has two different alleles for a trait
codominance an inheritance pattern
meiosis is the process by which the number of chromosomes is reduced by half to form sex cells-sperm and eggs
messenger RNA copies the coded message from the DNA in the nucleus,and carries the message to the ribosome in the cytoplasm
transfer RNA carries amino acids to the ribosome and adds them to the growing protein
mutation any change in a gene or chromosome
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