Genetics Vocabulary: Genotype and Phenotype
Explore the fundamental concepts of genotype and phenotype with this comprehensive worksheet for Grade 12 Biology students.
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Genetics Vocabulary: Genotype and Phenotype
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Read each question carefully and provide your best answer. This worksheet will test your understanding of key genetics vocabulary, specifically genotype and phenotype.
1. Which of the following best describes an organism's genotype?
The observable physical traits of an organism.
The genetic makeup of an organism, including both expressed and non-expressed alleles.
The environmental factors influencing an organism's development.
The process of gene expression from DNA to protein.
2. A plant with red flowers has the genotype 'Rr'. What is its phenotype?
Rr
Red flowers
White flowers
Pink flowers
3. The observable characteristics of an organism are referred to as its .
4. An organism with two identical alleles for a particular gene is said to be for that gene.
5. The genetic makeup of an organism is called its .
6. A homozygous dominant genotype will always express the dominant phenotype.
True
False
7. The environment can influence an organism's phenotype.
True
False
8. Explain the difference between a recessive allele and a dominant allele.
9. Provide an example of how an organism's phenotype can be influenced by both its genotype and environmental factors.
The image below illustrates the structure of a DNA double helix.
Use the words below to complete the sentences.
10. A specific segment of DNA that codes for a particular trait is called a(n) .
11. A different form of a gene is known as a(n) .
12. An individual with two different alleles for a specific gene is described as .