Genetics And Evolution Test Flashcards
(41 cards)
Gregor Mendel
Austrian botanist who launched science of genetics, studied pea plants, considered father of genetics
Heredity
Passing of traits from one generation to another
Geneticist
One who studies genetics
Genes
Units of heredity
Allele
One pair of genes responsible for contrasting traits
Dominant trait
Trait that prevents the showing of another trait
Recessive trait
Trait that is hidden by presence of dominant trait
Probability
Likelihood that a given event will occur
Hybrid
In genetics, organism that carries dominant and recessive allele for same trait
Heterozygous
In an organism when paired genes for specific trait are not identical
Homozygous
In an organism when paired genes for specific trait are identical
Pure read
Refers to organism that carries two dominant or two recessive alleles for a trait
Punnett square
Table used to predict what trait offspring will have based on what traits parents have
Genetics
Study of how traits are passed from parent to offspring
Phenotype
Physical appearance of organism
Genotype
Set of genes carried by organism
DNA
Deoxyribonucleic acid, determines genetic traits, found in nucleus
Chromosome
Structures located in nucleus, made of DNA, contains genetic info to Cary out cell fuctions
Meiosis
Process by which chromosomes is reduced by half to form sex cells
Sex chromosomes
Determine sex of offspring , x and y
Sex linked trait
Trait carried in X chromosome
Keryotype
A picture of paired chromosomes of an individual
Charles Darwin
Developed theory of evolution
Theory of evolution
describes how organisms changes over many generations