Trait Inheritance in Sexual Reproduction
In organisms that reproduce sexually, genetic material is passed from two parents to their offspring.
Each parent contributes half of the offspring's genetic makeup. For any given trait (like eye color or height), a specific gene controls it.
Organisms inherit two copies of most genes, with one copy coming from each parent. These different versions of a gene are called alleles.
Therefore, a child inherits one version (allele) of each trait from their mother and one version (allele) from their father. This results in the child having two versions of each trait in total.
Answer Breakdown
- Option 1: One version from each parent - This is correct. The child receives one allele from the mother and one from the father for each trait.
- Option 2: Two versions from the mother only - Incorrect. Genetic contribution comes from both parents.
- Option 3: One version in total - Incorrect. Two versions are inherited, one from each parent.
- Option 4: One version from father only - Incorrect. Genetic contribution comes from both parents.
Important Questions from Biology
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