5 Questions
What does Mendel's 3rd Law state?
Allele pairs separate independently during gamete formation.
What is the Law of Dominance?
An organism with alternate forms of an allele will express the form that is dominant.
According to the Law of Segregation, when do parental alleles segregate?
During meiosis
Which statement best describes the Principle of Independent Assortment?
Alleles for different traits are not dependent on one another for their expression.
If the genotype is AaBb, which of the following are possible gamete combinations?
AB, Ab, aB, ab
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.
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.
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