Patterns of Inheritance Worksheet
Explore Mendelian and non-Mendelian inheritance patterns with this Grade 11 Biology worksheet, covering concepts like dominant, recessive, codominance, and sex-linked traits.
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Patterns of Inheritance
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Read each question carefully and provide your best answer. Show all work for Punnett square problems.
1. Which of the following describes an organism that has two different alleles for a specific trait?
Homozygous dominant
Homozygous recessive
Heterozygous
Phenotypic
2. In , both alleles for a gene are expressed equally in the heterozygote, resulting in a blended or intermediate phenotype.
3. A gene located on a sex chromosome (X or Y) is called a trait.
4. Explain the difference between genotype and phenotype.
5. In pea plants, tall (T) is dominant over dwarf (t). Cross a heterozygous tall plant with a dwarf plant. Complete the Punnett Square below and answer the questions.
a. What is the genotypic ratio of the offspring?
b. What is the phenotypic ratio of the offspring?
6. Codominance results in a phenotype that is a blend of both parental traits.
True
False