Meiosis: Measuring Crossover Frequencies in 𝘚𝘰𝘳𝘥𝘢𝘳𝘪𝘢 𝘧𝘪𝘮𝘪𝘤𝘰𝘭𝘢
Explore meiosis in this virtual lab where you will measure crossover frequencies in the fungus Sordaria fimicola. As part of the lab, you will identify and differentiate between parental and recombinant asci. After scoring the asci, you will then use the asci counts to calculate the recombination (or crossover) frequency between the S. fimicola gene that controls spore color and the centromere.
Related resources
Topics
- 2n
- AP
- AP Biology
- AP Bio
- allele
- asci
- ascospores
- ascus
- black spore
- cell division
- centiMorgan
- centromere
- chromatid
- chromosome
- cM
- crossover
- crossing over
- crossover frequency
- diploid
- fungus
- genetically distinct
- genetic outcome
- genetic variation
- genetic variability
- haploid
- homologous chromosomes
- homologs
- loci
- map distance
- map units
- microscope
- meiosis
- meiosis I
- meiosis II
- mutant strain
- mycelia
- n
- next generation science standards
- NGSS
- non-sister chromatids
- nuclear division
- parental
- parental asci
- parental type
- perithecium
- perithecia
- prophase
- recombinant
- recombinant asci
- recombinant chromatid
- recombinant type
- recombination
- recombination frequency
- replicated chromosome
- RF
- sister chromatids
- Sordaria
- Sordaria fimicola
- spore
- strain
- tan spore
- unreplicated chromosome
- wild type
- zygote