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Questions and Answers
What does Mendel's 3rd Law state?
What does Mendel's 3rd Law state?
- Allele pairs separate independently during gamete formation. (correct)
- Organisms show a mixture of parental traits.
- Each inherited trait is defined by a pair of alleles.
- Dominant alleles always mask recessive alleles.
What is the Law of Dominance?
What is the Law of Dominance?
- An organism with alternate forms of an allele will express the form that is dominant. (correct)
- Each inherited trait is defined by a pair of alleles.
- Alleles for different traits separate during meiosis.
- Alleles for different traits are inherited independently.
According to the Law of Segregation, when do parental alleles segregate?
According to the Law of Segregation, when do parental alleles segregate?
- During fertilization
- During DNA replication
- During meiosis (correct)
- During mitosis
Which statement best describes the Principle of Independent Assortment?
Which statement best describes the Principle of Independent Assortment?
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If the genotype is AaBb, which of the following are possible gamete combinations?
If the genotype is AaBb, which of the following are possible gamete combinations?
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Study Notes
Mendel's Laws of Heredity
- Law of Dominance: One allele can be dominant over the other, resulting in its expression in the organism.
- Law of Segregation: Each inherited trait is defined by two alleles, one inherited from each parent, which separate during meiosis.
- Law of Independent Assortment: Alleles for different traits are sorted independently during gamete formation, ensuring that the combination of alleles is random.
Independent Assortment in Genetic Crosses
- In a cross involving two traits, each with two alleles, the possible combinations of alleles are 16 (4 x 4).
- The possible genotypes of offspring are determined by the alleles inherited from each parent.
- The probability of each genotype is determined by the number of possible combinations of alleles.
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Description
Test your understanding of Mendel's three laws of inheritance, including the Law of Dominance, Law of Segregation, and Law of Independent Assortment. Learn how these laws govern the transmission of genetic traits.
