Monohybrid and Dihybrid Crosses
Biology ⇒ Genetics and Heredity
Monohybrid and Dihybrid Crosses starts at 9 and continues till grade 12.
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A monohybrid cross between two heterozygous individuals results in what percentage of homozygous recessive offspring?
A monohybrid cross between two heterozygous tall pea plants (Tt x Tt) results in what percentage of short plants?
A pea plant with genotype RrYy is crossed with a plant with genotype rryy. What is the expected phenotypic ratio in the offspring?
A pea plant with genotype RrYy is crossed with another plant with genotype RrYy. What is the probability of obtaining an offspring with genotype rryy?
Describe the process of setting up a Punnett square for a dihybrid cross.
Describe the purpose of a test cross in genetics.
Explain the difference between genotype and phenotype in the context of a monohybrid cross.
Explain the significance of Mendel’s experiments with monohybrid and dihybrid crosses.
Explain why Mendel’s laws are not always applicable to all genes.
If a dihybrid cross is performed between AaBb and aabb, what is the expected phenotypic ratio in the offspring?
If a dihybrid cross is performed between two individuals with genotype AaBb, what fraction of the offspring will be homozygous for both traits?
If a monohybrid cross is performed between a homozygous dominant and a homozygous recessive individual, what will be the genotype of the F1 generation?
If a plant with genotype Rr is crossed with another plant with genotype Rr, what is the expected genotypic ratio in the offspring?
If a plant with genotype RrYy is self-crossed, how many different types of gametes can it produce?
In a dihybrid cross, what is the expected proportion of offspring showing both dominant traits?
In Mendel’s experiments, what were the parental genotypes in a monohybrid cross for seed shape if round (R) is dominant to wrinkled (r)?
What is a monohybrid cross?
Which law is demonstrated by the 9:3:3:1 ratio in a dihybrid cross?
A plant with genotype AaBb is test-crossed with aabb. If the two genes are located on different chromosomes, what is the expected phenotypic ratio among the offspring?
A researcher crosses two pea plants, one with genotype RrYy and the other with genotype rryy. If the genes are completely linked, what phenotypic ratio is expected in the offspring?
