Multiple Choice
In the F2 generation of Mendel's monohybrid crosses, what is the typical phenotypic ratio observed among the offspring?
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2. Mendel's Laws of Inheritance
Mendel's Experiments and Laws
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Which of the following best describes Mendel's Law of Segregation as demonstrated in his pea plant experiments?
A
Alleles for different genes always assort together during gamete formation.
B
Traits are blended in the offspring, resulting in intermediate phenotypes.
C
Dominant alleles are always inherited together with recessive alleles.
D
Each individual has two alleles for each gene, and these alleles separate during gamete formation so that each gamete receives only one allele.
Verified step by step guidance1
Understand that Mendel's Law of Segregation focuses on how alleles for a single gene behave during the formation of gametes (egg and sperm cells).
Recall that each individual organism inherits two alleles for each gene, one from each parent, making the organism diploid for that gene.
Recognize that during gamete formation (meiosis), these two alleles separate or segregate so that each gamete carries only one allele for each gene.
Note that this segregation explains why offspring receive one allele from each parent, maintaining genetic variation and allowing for dominant and recessive traits to be expressed.
Distinguish this law from other genetic principles, such as the Law of Independent Assortment, which deals with alleles of different genes, not the segregation of alleles of the same gene.
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