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प्रश्न
Distance between the genes and percentage of recombination shows ______.
विकल्प
a direct relationship
an inverse relationship
a parallel relationship
no relationship
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उत्तर
Distance between the genes and percentage of recombination shows a direct relationship.
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संबंधित प्रश्न
Occasionally, a single gene may express more than one effect. The phenomenon is called ______.
Discuss why Drosophila has been used extensively for genetical studies.
Assertion: When white eyed, yellow bodied Drosophila females were hybridized with red eyed, brown-bodied males; and F1 progeny was intercrossed, F2 ratio deviated from 9 : 3 : 3 : 1.
Reason: When two genes in a dihybrid are on the same chromosome, the proportion of parental gene combinations is much higher than the non-parental type.
The physical association of two or more genes located on the same chromosome, due to which they tend to be inherited together and do not assort independently, is called:
The process by which new non-parental combinations of genes are produced due to the exchange of genetic material between homologous chromosomes during meiosis is called:
Thomas Hunt Morgan conducted his experiments on linkage using which organism?
Which of the following is NOT a reason why Drosophila melanogaster was chosen for Morgan's linkage experiments?
In Morgan's initial cross, red-eyed females (XR XR) were crossed with white-eyed males (Xr Y). What observation did Morgan make in the F₂ generation?
In Morgan's dihybrid crosses with Drosophila, the F₂ ratio deviated from the expected 9:3:3:1 ratio. Which genes were being studied in these crosses?
If two genes show a recombination frequency of 1.3%, which of the following statements is most accurate?
According to Morgan's data, genes showing 37.2% recombination (such as white and miniature wing genes) are classified as:
Crossing over during meiosis can separate linked genes. This process demonstrates that:
Morgan's experiments with Drosophila demonstrated that genes are physically located on chromosomes by showing:
