Zadanie 6b
Explain whether crossing a plant heterozygous for symmetry and pigmentation (with the dominant alleles in coupling) with an asymmetric-leaved, green plant should also yield a1:1:1:1 phenotypic ratio.
- Materiał graficzny
Identifying recombinant offspring
Analyse test-cross outcomes for linked or unlinked genes and distinguish parental from recombinant combinations.
Tę umiejętność sprawdza 5 zadań wzorowanych na arkuszach IB z lat 2022–2025.
Zadania sprawdzające tę umiejętność: 5 Otwórz w wyszukiwarce z filtrami
Zadanie 7a
Identify the recombinant phenotypes.
Zadanie 5a
In a hypothetical beetle, dark body (D) is dominant to pale body (d), and broad wings (W) to narrow wings (w). A dark, broad-winged double heterozygote is crossed with a pale, narrow-winged individual. Offspring phenotype | Expected ratio if loci assort…
Zadanie 36
A double heterozygote has linked alleles in the arrangement RS/rs and is test-crossed with rs/rs. Which offspring genotypes arise from recombinant gametes of the heterozygote? A. RS/rs and rs/rs B. Rs/rs and rS/rs C. RR/ss and SS/rr D. RS/RS and rs/rs
Zadanie 2b
Explain why a dihybrid cross involving linked loci can differ from the ratio expected with independent assortment.
- Materiał graficzny