Which of the following sets includes only recessive traits observed in Pisum sativum?
1. Wrinkled seed shape, Green seed color, White flower color
2. Round seed shape, Yellow seed color, Purple flower color
3. Yellow pod color, Inflated pod shape, Axial flower position
4. Tall stem height, Green pod color, Round seed shape
Subtopic:  Monohybrid Cross: 1 |
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Which is correct about traits chosen by Mendel?

1. Terminal pod is dominant
2. Constricted pod is dominant
3. Green colored pod is dominant
4. Tall plants are recessive
Subtopic:  Introduction to Genetics: 1 | Introduction to Genetics: 2 | Monohybrid Cross: 1 |
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Which of the following is a dominant trait in Pisum sativum?
1. Yellow pod colour 2. Green seed colour
3. Axial flower position 4. Constricted pod shape
Subtopic:  Introduction to Genetics: 1 | Introduction to Genetics: 2 | Monohybrid Cross: 1 |
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What is the primary rationale behind using a test cross in genetic analysis?
1. To determine whether an individual displaying a dominant phenotype is homozygous dominant or heterozygous by crossing it with a homozygous recessive organism, which can only contribute recessive alleles.
2. To confirm the presence of dominant alleles in an individual by crossing it with a homozygous dominant parent, ensuring that all offspring exhibit the dominant phenotype.
3. To analyze the independent assortment of two different genes by crossing an individual with another that carries a dominant phenotype for both traits.
4. To eliminate recessive traits from a population by selectively breeding only individuals that exhibit dominant phenotypes.
Subtopic:  Monohybrid Cross: 1 |
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The production of gametes by the parents the formation of zygotes, the F1 and F2 plants can be understood using

1. Pie diagram 2. A pyramid diagram
3. Punnet square 4. Wenn diagram
Subtopic:  Monohybrid Cross: 1 |
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NEET - 2021
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Genes which code for a pair of contrasting traits or slightly different forms of the same gene are known as

1. Alleles 2. Loci
3. Cistrons 4. Introns
Subtopic:  Monohybrid Cross: 1 |
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A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?

1. Blood group B 2. Blood group AB
3. Blood group O 4. Blood group A
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
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What term did Mendel use to describe the units of inheritance, now called genes?
1. Chromosomes 2. Gametes
3. Factors 4. Alleles
Subtopic:  Monohybrid Cross: 1 |
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What is the concept of dominance in genetics?
1. Dominance refers to a trait that is expressed only in the presence of two identical alleles.
2. Dominance refers to the interaction between two alleles, where one allele masks the expression of the other in a heterozygous condition.
3. Dominance refers to the equal expression of both alleles in a heterozygous organism.
4. Dominance refers to the blending of traits from both alleles in the offspring.
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
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What is the F2 genotypic ratio in cases of incomplete dominance?

1. 1 : 1 2. 3 : 1
3. 1 : 2 : 1 4. 1 : 1
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
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