alleryStart learning →Which plant did Gregor Mendel use for his hybridisation experiments?
- Sweet corn
- Tobacco plant
- Garden pea
- Snapdragon
Show answer and solution
Correct answer: C. Garden pea
Mendel carried out his hybridisation experiments on garden peas.
ICSE Class 10 Principles of Inheritance and Variation — practice questions
Explore 55 free Principles of Inheritance and Variation questions in ICSE Class 10 Biology. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 55.
Which plant did Gregor Mendel use for his hybridisation experiments?Read the answer and worked solution →A true-breeding pea line shows stable traits after continuous:Read the answer and worked solution →Which pod shape traits formed one of Mendel's contrasting pairs in pea?Read the answer and worked solution →Mendel crossed true-breeding tall and dwarf peas. The F1 plants were:Read the answer and worked solution →The units of inheritance that Mendel called factors are now called:Read the answer and worked solution →Slightly different forms of a gene coding for contrasting traits are:Read the answer and worked solution →Pea plants with genotypes TT and tt are described as:Read the answer and worked solution →Alleles of a parental pair separate during gamete formation by:Read the answer and worked solution →When a Tt pea plant is selfed, what fraction of offspring is Tt?Read the answer and worked solution →In a test cross, a plant with the dominant phenotype is crossed with:Read the answer and worked solution →Crossing RRYY peas with rryy peas gives F1 seeds that are:Read the answer and worked solution →In humans, the sex of the child is decided by the genetic makeup of:Read the answer and worked solution →What is the scientific name of the pea plant Mendel studied?Read the answer and worked solution →A trait set by one locus with dominant or recessive alleles is a:Read the answer and worked solution →Mendel's uniformity rule applies to all individuals of which generation?Read the answer and worked solution →Which contrasting pair describes seed shape in Mendel's pea plants?Read the answer and worked solution →What is the first hybrid generation of a cross called?Read the answer and worked solution →In Mendel's notation, which symbol is used for the trait expressed in F1?Read the answer and worked solution →The descriptive terms 'tall' and 'dwarf' describe which feature of a plant?Read the answer and worked solution →A plant heterozygous for one character, such as Tt, is called a what?Read the answer and worked solution →According to the law of segregation, how many alleles of a pair does a gamete receive?Read the answer and worked solution →The 9:3:3:1 ratio is a combination of which two monohybrid ratios?Read the answer and worked solution →According to the law of independent assortment, segregation of one pair of characters is what?Read the answer and worked solution →In peas, T is dominant to t. Tt × tt gives what expected tall:dwarf ratio?Read the answer and worked solution →Two tall peas have a dwarf offspring (T dominant). What explains this?Read the answer and worked solution →T is dominant to t. A tall pea has a dwarf parent. Its genotype is:Read the answer and worked solution →What TT:Tt:tt ratio is expected from Tt × Tt with random fertilisation?Read the answer and worked solution →Why can TT and Tt peas both be tall when T is dominant?Read the answer and worked solution →At the height locus, which allele can a tt pea transmit in a gamete?Read the answer and worked solution →At one locus, a Tt pea forms gametes normally. What fraction carry T?Read the answer and worked solution →
Worked practice questions
A true-breeding pea line shows stable traits after continuous:
- Cross-pollination
- Vegetative propagation
- Self-pollination
- Repeated grafting
Show answer and solution
Correct answer: C. Self-pollination
A true-breeding line keeps the same trait for generations because it has undergone continuous self-pollination.
Which pod shape traits formed one of Mendel's contrasting pairs in pea?
- Inflated or constricted
- Straight or sickle-shaped
- Broad or narrow-tipped
- Smooth or deeply ridged
Show answer and solution
Correct answer: A. Inflated or constricted
Pod shape in Mendel's pea was either inflated or constricted.
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