MEDIUM
Earn 100
How to know which factors are male, and which are female from a checkerboard?
Important Questions on Inheritance and Variation
HARD
Explain Hardy Weinberg Principle with the help of a Punnett square.
EASY
Describe the Mendel's laws of inheritance.
EASY
In dogs, the barking trait is dominant over the silent trait. Using Punnet Square, work out the possible puppies born to two barking parents with genotype (Rr).
EASY
Explain the law of dominance using a monohybrid cross.
MEDIUM
Assertion (A): Two copies of the gene are the two allelic forms of which, one allele produces a non-functional enzyme.
Reason (R): The modified allele is generally the recessive allele.
The correct option among the following is:
HARD
A homozygous tall pea plant is crossed with its homozygous recessive parent. Find out the genotypic and phenotypic ratio with the help of Punnet square method.
MEDIUM
What is a monohybrid cross? Explain the types of phenotype and genotype found in the F2 generation with the help of a checkerboard.
EASY
Discuss Mendel's law of dominance.
EASY
In mice black coat color (allele ) is dominant to brown coat color (allele). The offspring of a cross between a black mouse and a brown mouse were allowed to interbreed. What percentage of the progeny would have black coats ?
MEDIUM
The ratio of long-winged and vestigial winged Drosophila are formed when a pure long-winged (dominant) and a pure vestigial winged (recessive) Drosophila are crossed:
HARD
Explain the law of dominance using a monohybrid cross.
MEDIUM
In human beings, brown eye (B) is dominant over blue eye (b). A brown-eyed couple has a blue-eyed child. What are the possible genotypes of the couple?
MEDIUM
Observe the figure given below showing Mendel’s experiment using pea plants.
Which are the laws proposed by Mendel based on these observations?
MEDIUM
What is a dominant character? How did Mendel prove through his experiments that the inherited characters are transmitted independently from one generation to the next?
EASY
Observe the figure given below showing Mendel’s experiment using pea plants.
Identify the cross.
EASY
A man with blood group A marries a woman with blood group B. What will be the genotype of man and woman if one of their child is born with blood group O? Show the type of progeny formed with help of Punnett square.
MEDIUM
Describe Mendel's law of segregation giving example.
HARD
F1 progeny of pea plant bearing violet flowers and snapdragon plant bearing red flowers were selfed to produce their respective F2 progeny. Compare the phenotype, genotype and pattern of inheritance of their respective F2 progeny.
MEDIUM
What is the possible genotypic ratio in generation if a plant producing red flowers is crossed with another plant of the same species that produces white flowers
EASY
A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the plants were selfed the resulting genotypes were in the ratio
