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A pair of genes may be identified as a l...

A pair of genes may be identified as a linked if their recombination frequency is lower than expect value of………….

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To determine if a pair of genes is linked, we need to understand the concept of recombination frequency. Here’s a step-by-step solution to the question: ### Step-by-Step Solution: 1. **Understanding Linked Genes**: - Linked genes are genes that are located close to each other on the same chromosome. Because of their proximity, they tend to be inherited together during meiosis. 2. **Recombination Frequency**: ...
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Loosely linked genes show ......... recombination frequency.

The linkage map of X - chrommosomes of fruitfly has 66 units , with yellow body gene (y) at one end and bobbed hair (b) gene at the other end . The recombination frequency between these two genes (y and b) should be

Assertion (A): Inheritance of genes in which genes present on a particular chromosome show a tendency to get inherited together is termed as Linkage. Reason (R): Very low recombination frequency or strong linkage is shown by the genes grouped on the same chromosome.

The figure shows the experiment of T.H Morgan on the linkage. If in cross-I, genes are tightly linked and in cross-II, genes are loosely linked then what will be the percentage of recombination produced in cross-I and cross-II respectively?

After insertion of DNA segment within the sequence of Z-gene of bacteria, they are grown on chromogenic substrate. After the growth of bacterial colonies, they are identified as (i) Recombinants if colonies are blue-coloured (ii) Recombinants if colonies are blue coloured (iii) Non-recombinants if colonies are blue-coloured (iv) Non - recombinants if colonies are white coloured

MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-MEMORY TEST (B. Complete the missing links)
  1. Crossing over occurs in stage of prophase - I of .

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  2. A chromosome having more than two chromatids is called as…………….

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  3. Jacob and Wollman named hereditary particles as………which can exist in t...

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  4. Linkage and crossing over are…………related.

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  5. More the …………..between two genes,the more ate the chances of ……………

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  6. Three examples of chemical mutagens are……………,…………….and …………….

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  7. The inborn errors of metabolism are gene controlled and are inherited ...

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  8. When there are more than two sets of genomes in a cell,the cell is sai...

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  9. Crossing over occurs at……………stranded stage.

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  10. Human females are homogametic and males are………..

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  11. Mutant Drosophilla with white eyes was found by………….

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  12. Transmission of a trait from father to daughter then to gradson is cal...

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  13. Morgan received the nobel prize in ……..for his pioneering work in gene...

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  14. When a particular chromosome rejoins in reverse orientation ,mutation ...

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  15. When a particle chromosome is present in three copies,the cell is a………...

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  16. A pair of genes may be identified as a linked if their recombination f...

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  17. Extra nuclear genes are usually present in mitochondria and…………..

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  18. Gene mutations alter the information conveyed by a………….

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  19. A,B,O blood grouping in human beings is based on………….

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