Monohybrid and Dihybrid Crosses
Biology ⇒ Genetics and Heredity
Monohybrid and Dihybrid Crosses starts at 9 and continues till grade 12.
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See sample questions for grade 10
Describe the difference between dominant and recessive alleles.
Explain why the 9:3:3:1 ratio is not always observed in dihybrid crosses.
If a homozygous dominant plant (TT) is crossed with a homozygous recessive plant (tt), what will be the genotype of the F1 generation?
If a monohybrid cross between two heterozygous individuals results in 100 offspring, how many are expected to show the recessive phenotype?
If a parent has genotype AaBb, list all possible gametes it can produce.
If a pea plant with genotype RrYy is crossed with another RrYy plant, what is the probability of getting an offspring with genotype RRYY?
If a plant with genotype Aa is crossed with a plant with genotype aa, what percentage of the offspring will be heterozygous?
If a plant with genotype Tt is crossed with another Tt plant, what are the possible genotypes of the offspring?
If a plant with genotype TtYy is crossed with a plant with genotype ttyy, what is the probability of getting an offspring with genotype Ttyy?
In a dihybrid cross, how many traits are studied simultaneously?
In a dihybrid cross, if both parents are heterozygous for both traits, how many different phenotypes can be observed in the F2 generation?
In a dihybrid cross, what is the probability of getting an offspring with both recessive traits if both parents are heterozygous for both traits?
What is a monohybrid cross?
What is the difference between genotype and phenotype?
What is the expected genotypic ratio in the F2 generation of a dihybrid cross between two heterozygous parents?
What is the expected phenotypic ratio in the F2 generation of a dihybrid cross between two heterozygous individuals?
What is the genotype ratio in the F2 generation of a monohybrid cross between two heterozygous parents?
What is the purpose of a test cross?
