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Multiple Choice
In the context of genetics, which of the following best describes the genotype of individual II-5 in a pedigree chart?
A
The observable traits of individual II-5
B
The environmental influences on individual II-5
C
The genetic makeup of individual II-5
D
The physical appearance of individual II-5
Verified step by step guidance
1
Understand the concept of genotype: In genetics, a genotype refers to the genetic makeup of an individual, including all the alleles present in their DNA. It is distinct from the phenotype, which is the observable traits or characteristics of an individual.
Identify the role of a pedigree chart: A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next, often used to track inheritance patterns.
Locate individual II-5 on the pedigree chart: In a typical pedigree chart, individuals are numbered sequentially within each generation. Generation II refers to the second generation, and individual II-5 would be the fifth individual in that generation.
Differentiate between genotype and phenotype: While the phenotype is the physical appearance or observable traits, the genotype is the underlying genetic code that contributes to these traits. The genotype is not influenced by environmental factors, whereas the phenotype can be.
Conclude the description of genotype: Based on the definitions, the genotype of individual II-5 refers to their genetic makeup, which includes the specific alleles inherited from their parents, rather than their observable traits or environmental influences.