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Reyana09

@reyana09

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Joined: Nov 16, 2021
Last seen: Dec 29, 2021

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Answer to: Mendel’s law of independent assortment does not hold true for the genes that are located closely on

Correct answer: (a) same chromosome

4 years ago

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Principles of Inheritance and Variation

Answer to: Which of the following is suitable for experiment on linkage?

Correct answer: (b) AABB x aabb

4 years ago

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Principles of Inheritance and Variation

Answer to: The distance between the genes is measured by

Correct answer: (c) Dobson unit

4 years ago

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Principles of Inheritance and Variation

Answer to: Chromosome maps/genetic maps were first prepared by

Correct answer: (d) Sturtevant (1911)

4 years ago

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Principles of Inheritance and Variation

Answer to: What is true about the crossing over between linked genes?

Correct answer: (c) Hardly any crossing over

4 years ago

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Principles of Inheritance and Variation

Answer to: Genes located very close to one another on same chromosome tend to be transmitted together and are called as

Correct answer: (c) linked genes

4 years ago

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Principles of Inheritance and Variation

Answer to: Experimental verification of ‘chromosomal theory of inheritance’ was done by

Correct answer: (b) Morgan et al

4 years ago

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Principles of Inheritance and Variation

Answer to: The oxidation state of Fe in Fe3O8 is

Correct answer: (d) Explanation: Fe3O8 3x - 16 = 0 ∴ x =

4 years ago

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Redox Reactions

Answer to: Which of the following is the strongest reducing agent in aqueous medium? (a) Mg (b) Na (c) Li (d) Ca

Correct answer: (c) Li Explanation: In an aqueous medium, Li is the strongest reducing agent, since the high negative enthalpy of hydration compen...

4 years ago

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Redox Reactions

Answer to: The oxidation number of Fe in Na2[Fe(CN)5NO] is

Answer is (a) +2 Explanation: Given, Oxidation state of Fe = +2

4 years ago

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Redox Reactions

Answer to: The standard electrode potentials of four elements A, B, C and D are -3.05, -1.66, -0.40 and +0.80. The highest chemical reactivity will be exhibited by

Correct answer: (a) A Explanation: Standard electrode potential i.e. reduction potential of A is minimum (-3.05V) i.e. its oxidation potential is ...

4 years ago

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Redox Reactions

Answer to: In the following reaction 4P + 3KOH + 3H2O → 3KH2PO2 + PH3

Correct answer: (a) phosphorus is both oxidised and reduced. Explanation: 4P + 3KOH + 3H2O → 3KH2PO2 + PH3 O.N of P = 0, In KH2PO2 it is + 1, ...

4 years ago

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Redox Reactions

Answer to: Chromosomal theory of inheritance was given by

Correct answer: (b) Sutton and Boveri

4 years ago

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Principles of Inheritance and Variation

Answer to: Which three scientists independently rediscovered Mendel’s work?

Correct answer: (d) de Vries, Correns and Tschemark

4 years ago

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Principles of Inheritance and Variation

Correct answer: (b) 1900

4 years ago

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Principles of Inheritance and Variation

Answer to: Law of independent assortment can be explained with the help of

Correct answer: (a) dihybrid

4 years ago

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Principles of Inheritance and Variation

Answer to: Which of the following is correct for the condition when plant YyRr is back crossed with the double recessive parent?

Correct answer: (d) 1 : 1 : 1 : 1 ratio of phenotypes and genotypes

4 years ago

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Principles of Inheritance and Variation

Answer to: How many types of gametes can be produced by a diploid organism who is heterozygous for 4 loci?

Correct answer: (c) 16

4 years ago

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Principles of Inheritance and Variation

Answer to: In mice, Y is the dominant allele for yellow fur an y is the recessive allele for grey fur. Since Y is lethal when homozygous, the result of cross Yy × Yy will be

Correct answer: (b) 2 yellow : 1 grey

4 years ago

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Principles of Inheritance and Variation

Answer to: ABO blood grouping in human beings cites the example of

Correct answer: (d) both (b) and (c)

4 years ago

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Principles of Inheritance and Variation

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