Zadanie 7b
Distinguish between the effects of a dominant allele and a recessive allele under complete dominance.
Dominant and recessive phenotype patterns
Predict phenotypes from allele combinations under complete dominance and explain the heterozygote result.
Tę umiejętność sprawdza 7 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 7 Otwórz w wyszukiwarce z filtrami
Zadanie 5a
Explain the inheritance conclusion supported by cross 1.
Zadanie 5b
Deduce why crosses 2 and 3 give different offspring ratios.
Zadanie 5c
Cross 4 produces 96 offspring. Predict the two phenotype counts and the proportion spotted.
Zadanie 13
A hypothetical condition is caused by a fully penetrant autosomal dominant allele. The pedigree shows one family; assume no new mutations. What is the probability that the next child of II-2 and II-3 will be affected? A. 0% B. 25% C. 75% D. 50%
- Materiał graficzny
Zadanie 12
This pedigree shows a fully penetrant inherited condition. Assume no new mutations. Which pattern fits it? A. Autosomal dominant inheritance B. Y-linked inheritance C. X-linked dominant inheritance D. Autosomal recessive inheritance
- Materiał graficzny
Zadanie 13
A fully penetrant autosomal dominant condition is caused by allele D. Two heterozygous parents are Dd. What is the chance that a child inherits the condition? A. One quarter B. One half C. Three quarters D. All children