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QuestionBiology

Explain how the alleles were passed from parents to offspring.
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Step 1:
I'll solve this problem about allele inheritance using clear, step-by-step genetic principles.

Step 2:
: Understanding Allele Inheritance

Alleles are alternative forms of a gene that are passed from parents to offspring during sexual reproduction. Each parent contributes one allele to their offspring, determining the genetic traits.

Step 3:
: Genetic Transmission Mechanism

- Parents each have two alleles for a specific gene - During gamete formation, each parent randomly passes ONE allele to their offspring - The combination of these parental alleles determines the offspring's genetic makeup

Step 4:
: Allele Inheritance Principles

aa$$ (homozygous recessive)
- Possible parental genotypes include:

Step 5:
: Punnett Square Example

\begin{matrix}
A Punnett square demonstrates how alleles are passed: & A & a \ A & AA & Aa \ a & Aa & aa \end{matrix}

Final Answer

Alleles are inherited through sexual reproduction, with each parent contributing one allele to determine the offspring's genetic traits, following principles of dominant and recessive gene expression.