Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- Recessive characters are expressed
- The 1:2:1 ratio with the pink flower in the F_2-generation indicate the phenomenon of
- How many different types of gametes can be formed by F_1 progeny, resulting from the following cross? AABBCC aabbcc
- Which of the following is best suited for codominance?
- When tall and dwarf plants are crossed, from which cross 1:1 ratio is obtained?
- Pure tall plants are crossed with pure dwarf plants. In the F_1-generation, all plants were tall. These tall plants of...
- The linkage map of X-chromosomes of fruit fly has 66 units, with yellow body gene (y) at one end and bobbed hair (b) gene at the...
- Mutant genes that give slightly modified phenotypes are
- Genes, when close together on a chromosome, are known as
- Mendelian recombinations are due to
- Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are...
- In dominant epistasis, a dominant gene(epistatic) masks the expression of another dominant or recessive gene (hypostatic) in a...
- Law of segregation is also called law of
- Some individuals with blood group-A may inherit the genes for blonde hair, while other individuals with blood group-A may have...
- Genetic recombination is due to
- A character, which is expressed in a hybrid is called
- If a cross between two individuals produces offspring with 50% dominant character (A) and 50% recessive character (a), then the...
- In a given plant, red colour (R) of fruit is dominant over white fruit (r); and tallness (T) is dominant over dwarfness (t). If a...
- When different alleles of the same gene are present on an individual, the individual is a
- Which is incorrect for Mendelism?
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