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Q1. In Mendel's experiments, which trait was observed to be dominant over the other? (2018)
Solution:
In Mendel's experiments, yellow seed color was observed to be dominant over green seed color.
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Q2. In a test cross, an individual of unknown genotype is crossed with which of the following? (2021)
Solution:
A test cross is performed by crossing an individual of unknown genotype with a homozygous recessive individual.
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Q3. What is the term for an organism that has two identical alleles for a trait? (2022)
Solution:
An organism with two identical alleles for a trait is called homozygous.
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Q4. Which of the following is an example of a dihybrid cross? (2019)
Solution:
A dihybrid cross involves two traits, and AaBb x AaBb is an example of such a cross.
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Q5. In a cross between a red flowered plant (RR) and a white flowered plant (rr), what will be the color of the flowers in the F1 generation? (2019)
Solution:
The F1 generation will have red flowers since red is dominant over white.
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Q6. In a pedigree chart, a filled circle represents which of the following? (2023)
Solution:
In a pedigree chart, a filled circle represents an affected female.
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Q7. What is the main purpose of a Punnett square? (2020)
Solution:
A Punnett square is used to predict the genetic variation and possible genotypes of offspring from a genetic cross.
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Q8. Which of the following is NOT a Mendelian trait? (2022)
Solution:
Skin color in humans is a polygenic trait and does not follow Mendelian inheritance patterns.
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Q9. In Mendel's experiments, which trait was observed to be dominant in pea plants? (2018)
Solution:
In Mendel's experiments, yellow seed color was observed to be the dominant trait in pea plants.
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Q10. Which of the following represents a phenotype? (2021)
Solution:
A phenotype is the observable characteristic, such as brown eyes.
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