Genetics and Heredity quiz

🧬 Quick Study Guide

• 🌱 Genes: The basic units of heredity, composed of DNA and arranged on chromosomes.
• 🔬 Alleles: Different forms of a gene. Individuals inherit two alleles for each gene, one from each parent.
• 💡 Genotype: The genetic makeup of an individual (e.g., AA, Aa, aa).
• 👁️ Phenotype: The observable characteristics of an individual, resulting from the interaction of its genotype with the environment (e.g., blue eyes, tall height).
• ➕ Dominant Allele: An allele that expresses its phenotype even when paired with a recessive allele.
• ➖ Recessive Allele: An allele that expresses its phenotype only when paired with another recessive allele.
• 📜 Mendel's Laws:
  • ⚖️ Law of Segregation: Allele pairs separate during gamete formation.
  • 🔗 Law of Independent Assortment: Genes for different traits are sorted separately from one another during gamete formation.
• 🧬 Punnett Square: A diagram used to predict the genotypes and phenotypes of offspring from a genetic cross.

🧪 Practice Quiz

1. Which of the following is the basic unit of heredity?
   1. Atom
   2. Cell
   3. Gene
   4. Tissue
2. What is the term for different forms of a gene?
   1. Genotype
   2. Phenotype
   3. Allele
   4. Chromosome
3. The genetic makeup of an individual is known as:
   1. Phenotype
   2. Genotype
   3. Karyotype
   4. Allele
4. What does the term 'phenotype' refer to?
   1. The genetic makeup of an individual
   2. The observable characteristics of an individual
   3. The process of cell division
   4. The structure of DNA
5. Which of Mendel's laws states that allele pairs separate during gamete formation?
   1. Law of Dominance
   2. Law of Independent Assortment
   3. Law of Segregation
   4. Law of Mutation
6. A diagram used to predict the genotypes and phenotypes of offspring is called a:
   1. Pedigree Chart
   2. Karyotype
   3. Punnett Square
   4. Cladogram
7. What is an allele that expresses its phenotype only when paired with another identical allele?
   1. Dominant Allele
   2. Recessive Allele
   3. Codominant Allele
   4. Incomplete Dominant Allele