Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- Which of the following characters was not chosen by Mendel?
- _____ code for a pair of contrasting traits of the same gene.
- A recessive allele is expressed in
- The characters which appear in the first filial generation are called
- In a monohybrid cross between two heterozygous individuals, the percentage of pure (homozygous) individuals obtained in the...
- On crossing two heterozygous tall plants (Tt), a total of 500 plants were obtained. What will be the respective number of tall...
- In mice, black coat colour (allele B) is dominant to brown coat colour (allele b). The offspring of a cross between a black mouse...
- In fruit flies, long wing is dominant to vestigial wing. When heterozygous long-winged flies were crossed with vestigial-winged...
- What is the probability of producing dwarf offspring in a cross between two heterozygous tall pea plants?
- A tobacco plant heterozygous for a recessive character is self-pollinated, and 1200 seeds are subsequently germinated. How many...
- Read the given statements and select the correct option. Statement 1: Test cross is used to determine an unknown genotype within...
- Fruit shape in shepherd's purse (*Capsella bursa*) is of two types — triangular and top-shaped. Triangular fruit shape (T) is...
- Mendel formulated the law of purity of gametes on the basis of
- Read the given statements and select the correct option. Statement 1: The law of segregation is one of the most important...
- The inheritance of flower colour in *Antirrhinum* (dog flower) is an example of
- The phenotypic and genotypic ratios are similar in the case of
- In Four o'clock plants, the gene for red flower colour (R) is incompletely dominant over the gene for white flower colour (r), so...
- Andalusian fowls have two pure forms — black and white. If black forms (BB) and white forms (WW) are crossed, F1 individuals...
- Inheritance of roan coat colour in cattle is an example of
- A cow with red coat is crossed with a bull having white coat. Their F1 offspring showed roan coat, produced due to juxtaposition...
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