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ATS-Science 7

Genetics Vocabulary

TermDefinition
Gregor Mendel called the Father of Genetics and developed the principal of genetics by researching pea plants
Trait charasteristic of an organism
Dominant Trait stronger gene or trait in genetics
Recessive Trait weaker gene or trait in genetics
Allele each form of a gene When you
Meiosis process that results in cells with only half the normal number of chromosomes
Phenotype visible characteristics of an organism
Genotype genetic makeup of an organism
Gene the basic unit of heredity
Heredity the passing of traits and genes from parent to offspring
Heterozygous organisms with 1 dominant and 1 recessive gene
Homozygous an organism that has either both dominant or both recessive traits
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
Sex Chromosomes carry genes that determine sex of an individual
Probability the likelihood that a possible future event will occur at any given instance of the event.
**YOU NEED TO KNOW HOW TO COMPLETE PUNNETT SQUARES & ANSWER QUESTIONS ABOUT THEM**(ex.What % of offspring will be heterozygous) **YOU NEED TO KNOW HOW TO COMPLETE PUNNETT SQUARES & ANSWER QUESTIONS ABOUT THEM**(ex.What % of offspring will be heterozygous)
DNA-Deoxyribonucleic Acid in all living things, contains information that determines traits or your genes
Nucleotide The outside ladder of a DNA that is made up of a sugar, a phosphate, and a nitrogen base
Chromosomes In eukaryotic cells ans is made up of DNA-thread like
Created by: glink