3. Extensions to Mendelian Inheritance
Variations of Dominance
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Practice this topic
- Multiple Choice
Which of the following is NOT a type of dominance?
550views - Multiple Choice
Which of the following parents could produce offspring with an AB blood type?
515views2rank - Multiple Choice
Blood types are an example of what type of dominance?
812views3rank - Textbook Question
How were early geneticists able to ascertain inheritance patterns that did not fit typical Mendelian ratios?
414views - Textbook Question
In shorthorn cattle, coat color may be red, white, or roan. Roan is an intermediate phenotype expressed as a mixture of red and white hairs. The following data were obtained from various crosses:
How is coat color inherited? What are the genotypes of parents and offspring for each cross?
1254views - Textbook Question
In foxes, two alleles of a single gene, P and p, may result in lethality (PP), platinum coat (Pp), or silver coat (pp). What ratio is obtained when platinum foxes are interbred? Is the P allele behaving dominantly or recessively in causing (a) lethality; (b) platinum coat color?
851views - Textbook QuestionIn mice, a short-tailed mutant was discovered. When it was crossed to a normal long-tailed mouse, 4 offspring were short-tailed and 3 were long-tailed. Two short-tailed mice from the F1 generation were selected and crossed. They produced 6 short-tailed and 3 long-tailed mice. These genetic experiments were repeated three times with approximately the same results. What genetic ratios are illustrated? Hypothesize the mode of inheritance and diagram the crosses.979views
- Multiple ChoiceWhich of the following best explains why the relationship between genes and traits is often complicated in humans, particularly in the context of variations of dominance?2views