Recent questions tagged principles of inheritance and variation

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In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that: a. The allels of two genes are interacting with each other

asked Apr 7, 2019 in Class 12 by kratos

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In a monohybrid cross, when F1 is crossed with homozygous dominant parent then which type of offsprings will be obtained?

asked Apr 7, 2019 in Class 12 by kratos

+3 votes

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What are important facts for poultry farm management?

asked Apr 7, 2019 in Class 12 by kratos

+2 votes

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Using a Punnett square, work out the distribution of phenotypic features in the first filial generation after a cross betwee

asked Apr 6, 2019 in Class 12 by kratos

+2 votes

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Bile salts : (A) break down polypeptide chains (B) emulsify fats and solubilize them

asked Apr 5, 2019 in Class 12 by kratos

+2 votes

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During his studies on genes in Drosophila that were sexlinked TH.Morgan found F2 - population phenotypic ratios deviated

asked Apr 3, 2019 in Class 12 by kratos

+2 votes

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Explain the causes, inheritance pattern and symptoms of any two Mendelian genetic disorders.

asked Apr 3, 2019 in Class 12 by kratos

+2 votes

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Differentiate between: (a) genotype and phenotype.

asked Apr 2, 2019 in Class 12 by kratos

+2 votes

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Complete the following statement by filling in the blank from the choices given in the brackets. An anticoagulant

asked Apr 2, 2019 in Class 12 by kratos

+2 votes

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When a snapdragon plant bearing pink colour flower was selfed, it was found that, 69 plants were having red ******** flowers.

asked Apr 2, 2019 in Class 12 by kratos

+2 votes

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explain with the help of an example each male and female heterogamety mechanism of *** determination

asked Apr 2, 2019 in Class 12 by kratos

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What is the karyotype in Turner’* syndrome? Mention two symptoms of the syndrome.

asked Apr 1, 2019 in Class 12 by kratos

+3 votes

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Name the genetic disorder in a human female having 44 + XO karyotype. Mention the diagnostic features of the disorder.

asked Apr 1, 2019 in Class 12 by kratos

+2 votes

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Law of segregation is also known as

asked Mar 31, 2019 in Class 12 by kratos

+3 votes

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During a medical investigation, an infant was found to possess an extra chromosome 21.

asked Mar 31, 2019 in Class 12 by kratos

+2 votes

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Which one of the following pairs is wrongly matched? (a) XO type ***-determination - Grasshopper

asked Mar 30, 2019 in Class 12 by kratos

+1 vote

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A Across between two tall plants resulted in offspring having few dwarf plants.

asked Mar 29, 2019 in Class 12 by kratos

+3 votes

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Write the genotypic ratio of F2 generation in a monohybrid cross that was carried out by Mendel in a pea plant.

asked Mar 28, 2019 in Class 12 by kratos

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Define aneuploidy. How is it different from polyploidy? Describe the individuals having the following chromosomal abnormalities.

asked Mar 27, 2019 in Class 12 by kratos

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A child has blood group O. If the father has blood group A and mother blood group B,

asked Mar 27, 2019 in Class 12 by kratos

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