Skip to main content
Back

Trihybrid Cross definitions

Control buttons has been changed to "navigation" mode.
1/15
  • Trihybrid Cross
    Analysis involving three traits to study inheritance patterns and gene mapping, often using Punnett squares and recombination data.
  • Mendelian Inheritance
    Pattern of genetic transmission for unlinked genes, following predictable ratios based on independent assortment.
  • Linked Genes
    Genes located on the same chromosome, inherited together more often due to reduced recombination between them.
  • Recombination Frequency
    Proportion of recombinant offspring, calculated to estimate genetic distance and linkage between genes.
  • Parental Gametes
    Gametes with allele combinations identical to those of the original parents, used as a reference in mapping.
  • Recombinant Gametes
    Gametes with new allele combinations resulting from crossing over between homologous chromosomes.
  • Test Cross
    Genetic cross involving a heterozygote and a homozygous recessive to reveal genotype and linkage relationships.
  • Heterozygote
    Individual possessing two different alleles for each gene under study, crucial for generating diverse gametes.
  • Wild Type
    Reference phenotype or allele considered standard or most common in a population, often denoted with a plus sign.
  • Mutant Allele
    Variant form of a gene differing from the wild type, often resulting in altered or non-standard phenotypes.
  • Chromosome Map
    Diagram showing the relative positions and distances between genes, constructed using recombination frequencies.
  • Double Crossover
    Event where two separate crossovers occur between three genes, affecting recombination calculations and gene order.
  • Map Unit
    Measurement of genetic distance, equivalent to a 1% recombination frequency between two loci.
  • Gene Order
    Linear arrangement of genes on a chromosome, determined by comparing recombination frequencies.
  • Homologous Chromosome
    Pair of chromosomes carrying the same genes, but possibly different alleles, essential for recombination analysis.