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When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be _____

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Important Questions on Principles of Inheritance and Variation

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
The term ''linkage'' was coined by:
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Select the correct statement.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Two genetic loci controlling two different traits two different traits are linked. During the inheritance of these traits, the Mendelian laws that would be affected is/are:
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Alkaptonuria (aa) is which type of error?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
With increasing age, the linkage ___.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes

The following family tree traces the occurrence of a rare genetic disease. The filled symbols signify the individuals with the disease, whereas the open symbols signify healthy individuals.

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Based on this information, the disease is most likely to be:

EASY
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Define ‘linkage’.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
What is sex linkage?
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
A cross wạs carried out between two individuals, heterozygous for two pairs of genes. Assuming segregation and independent assortment, the number of different genotypes and phenotypes obtained respectively would be
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
In Morgan's experiment with Drosophila, when a yellow bodied white-eyed female was crossed with brown bodied red-eyed male and their F1 Progeny were intercrossed. What was the percentage of recombinants in the F2 generation?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes

Assertion (A): The proportion of parental gene combinations was much lighter than non-parental type

Reason (R): Gene combination is due to linkage of the two genes

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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Experimental verification of the chromosomal theory of inheritance was done by
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
How did Sturtevant explain gene mapping while working with Morgan?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Identify the event in meiosis mediated by the enzyme recombinase.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes

Give one significant difference between the following:

Linkage and crossing over

HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
"Complete linkage is rare" explain it with a suitable example.
MEDIUM
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Write differences between linkage and crossing over.
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Who proposed the chromosomal theory of inheritance?
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Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
Chromosomal theory of inheritance was proposed by:
HARD
Biology>Genetics and Evolution>Principles of Inheritance and Variation>Inheritance of Two genes
In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates: