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Genetics Vocab chp 5

Genetics the study of heredity
Gregor Mendel called the Father of Genetics... he developed the principal of genetics by researching pea plants
Trait a genetically determined characteristic
Dominant gene stronger gene or trait in genetics
Recessive gene weaker gene or trait in genetics
Allelle one of the alternative forms of a gene that governs a characteristic... a genotype includes an allele from each parent
Hybrid an organism that is heterozygous (has two different genes) for a particular trait
Purebred an organism that is homozygous (has two of the same genes) for a particular trait
Incomplete dominance condition that occurs when genes are neither dominant nor recessive (characteristics blend).
Codominance the expression of two dominant traits within the same organism at the same time
Meiosis the production of sex cells... the process results in cells with only half the normal number of chromosomes
Phenotype the visible characteristics of an organism (as a result of the genotype)
Genotype the genetic makeup of an organism
Punnett Square a chart that is used to show the possible gene combinatons in a cross between two organisms.
Mutation a change in a gene or chromosome that results in a new characteristic
Sex-linked trait characteristic passed from parent to child on a sex chromosome
DNA nucleic acid that stores the information needed to build proteins and carries genetic information about an organism
Genetic engineering process in which genes or parts of DNA are transferred from one organism into another organism
Gene the basic unit of heredity
Heredity the passing of traits and genes from parent to offspring.
Chromosome in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA
Probability the likelihood that a future event will occur
Heterozygous organism with 1 dominant and 1 recessive gene
Homozygous organism that has either both dominant or both recessive genes
Homologous chromosomes chromosomes that have the same sequence of genes and structure
Pedigree a diagram that shows a genetic trait in several generations of a family
Created by: lsvocab
Popular Genetics sets




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