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Chapters 14 + 15 - Coggle Diagram
Chapters 14 + 15
Chromosomal Basis of Inheritance
Mendelian Inheritance
Chromosome Theory of Inheritance
Definition: Parallels between chromosome behavior and behavior or proposed factors
Wild type
Definition: Normal phenotypes
The Chromosomal Basis of Sex
Sex-linked Gene
Definition: Gene located on either sex chromosome
X-linked Genes
Definition: Genes on the X chromosome
Linkage
Linked genes
Definition: Genes located on the same chromosome
Genetic recombination
Definition: The production of offspring with combos of traits from either parent
Recombination of Unlinked Genes
Parental types
Definition: Offspring with a phenotype matching one of the parental phenotypes
Recombinant types
Definition: Offspring with nonparental phenotypes
Crossing over
Definition: Process that breaks the connection between genes on the same chromosome
Maps
Genetic map
Definition: List of genetic loci along a chromosome
Linkage map
Definition: Genetic map of a chromosome based on recombo frequencies
Map units
Definition: 1% recombination frequency
Abnormal Chromosome Number
Nondisjunction
Definition: Pairs of homologous chromosomes that don't separate
Monosomic Zygote
Definition: One copy of a chromosome
Trisomic zygote
Definition: Three copies of a chromosome
Polypoidy
Definition: More than two complete sets of chromosomes
Mendel & The Gene Idea
Experimental + Quantitative Approach
Character
Definition: A heritable feature that varies among individuals
Trait
Definition: Each variant for a character
True-Breeding
Definition: Offspring of the same variety when plants self-pollinate
Hybridization
Definition: Mating two contrasting, true-breeding varieties
Generations
P Generation
Definition: True-breeding parents
F1 Generation
Definition: Offspring of the P generation
Monohybrids
Definition: Heterozygous offspring produced in this cross
Dihybrids
Definition: Crossing two true-breeding parents different in two characters
F2 Generation
Definition: F1 individuals self-pollinating with eachother
Laws
The Law of Segregation
Definition: Two alleles separate during gamete formation and end up in different gametes
The Law of Independent Assortment
Definition: Each pair of alleles segregates independently during gamete formation
Mendel's Model
Alleles
Definition: Alternative versions of a gene
Dominant alleles
Definition: Determines the organism's appearance
Recessive alleles
Definition: Has no noticeable effect on appearance
Punnett Square
Definition: Possible combinations of sperm and egg
Genetics
Homozygote
Homozygous
Definition: Gene controlling a character
Definition: Organism with two identical alleles
Heterozygote
Heterozygous
Definition: Gene controlling a character
Definition: Organism with two different alleles
Monohybrid cross
Definition: Cross between heterozygotes
Dihybrid cross
Definition: A cross between F1 dihybrids
Phenotype
Definition: Physical appearance
Genotype
Definition: Genetic makeup