In a test cross, an individual with an unknown genotype is crossed with which of the following? (2023)
Practice Questions
1 question
Q1
In a test cross, an individual with an unknown genotype is crossed with which of the following? (2023)
Homozygous dominant
Heterozygous
Homozygous recessive
Any individual
In a test cross, the individual with an unknown genotype is crossed with a homozygous recessive individual.
Questions & Step-by-step Solutions
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Q
Q: In a test cross, an individual with an unknown genotype is crossed with which of the following? (2023)
Solution: In a test cross, the individual with an unknown genotype is crossed with a homozygous recessive individual.
Steps: 5
Step 1: Understand what a test cross is. A test cross is a way to determine the genotype of an individual with an unknown genetic makeup.
Step 2: Identify the individual with the unknown genotype. This is the organism whose genetic information we want to find out.
Step 3: Know what a homozygous recessive individual is. This is an individual that has two copies of the recessive allele (e.g., 'aa').
Step 4: Cross the individual with the unknown genotype with a homozygous recessive individual. This means you will breed them together.
Step 5: Analyze the offspring. The traits of the offspring will help you determine the genotype of the unknown individual based on the traits expressed.
