Principles of Inheritance and Variation questions
1199 published questions with worked solutions.
- The ratio 1:1:1:1 is obtained from a cross between the parents
- A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc AaBbCc, the phenotypic ratio of the offsprings was...
- Mendel's principle of segregation means that the germ cells always receive
- Genes exhibiting multiple effects are known as
- A homozygous sweet pea plant with blue flowers (RR) and long pollen (LL) is crossed with a homozygous plant having red flowers...
- The law of segregation of characters is also called the law of purity of gametes because
- Incomplete dominance, in which the dominant allele of a heterozygote does not completely mask the expression of the recessive...
- To determine heterozygousity of a cross, one has to perform
- Mendel does not get linkage due to
- In Guinea pigs, black short hair (BBSS) is dominant over white long hair (bbss). During a dihybrid cross, the F_2-generation...
- Genetic counsellors can identify heterozygous individuals by
- Incomplete dominance is seen in
- A red (dominant) flowered heterozygous plant is crossed with a white flowered plant. Which of the following progeny counts best...
- The genotype of a plant showing the dominant phenotype can be determined by
- Number of linkage group in *Pisum sativum* is
- Lack of independent assortment of two genes 'A' and 'B' in fruit fly-*Drosophila* is a due to
- Ratio of progeny, when a red coloured heterozygote is crossed with a white coloured plant in which red colour is dominant to...
- A common test to find the genotype of a hybrid is by
- Genes are present on
- In certain plant species, red flower colour is incompletely dominant to white flower colour (the heterozygote is pink) and tall...
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