ICAR-AIEEA-PG Practice Quiz

Question 1

In pea, tall stem (T) is dominant over dwarf stem (t). When two heterozygous tall plants are crossed, what proportion of dwarf offspring is expected?

Accepted Answer

1/4

Question 2

A true-breeding round-seeded pea plant is crossed with a true-breeding wrinkled-seeded plant. All F1 seeds are round. Which Mendelian principle is best illustrated by this result?

Accepted Answer

Law of dominance

Question 3

A plant of unknown genotype showing dominant phenotype for a monohybrid trait is crossed with a homozygous recessive plant. All 200 progeny show the dominant phenotype. Which genotype of the unknown parent is most consistent with this result under strict Mendelian inheritance?

Accepted Answer

Homozygous dominant

Question 4

In a classic dihybrid self, AaBb × AaBb, what is the probability of obtaining an offspring with genotype aabb?

Accepted Answer

1/16

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