WHAT ARE LINKAGE AND RECOMBINATION ? BRIEFLY DESCRIBE WITH DIAGRAM.
Asked by poojaparmar065
| 12th Sep, 2014,
05:06: PM
Linkage is a phenomenon of certain genes to stay together during inheritance through generations without any change or separation due to their being present on the same chromosome. Linkage was first suggested by Sutton and Boveri (1902-1903) when they propounded the chromosomal theory of inheritance. In 1911, Morgan and Castle proposed the chromosomal theory of linkage.
A new grouping of genes or a new combination of characters which is different from the parental types is called recombination. Crossing over involves mutual exchange of segments of genetic material between non-sister chromatids of two homologous chromosomes so as to produce recombinations or new combination of genes.
Answered by Sheetal Kolte
| 15th Sep, 2014,
10:27: AM
Concept Videos
- what do you mean by DNA fingerprinting
- why does recombination occur only in F2 progeny? why not in F1 progeny?
also while selfing F1 progeny why are we using different species? if then it will not be considered as selfing
- molecular nature of gene
- Significance of Linkage and crossing over
- Dihybrid cross produces the following progeny - AaBb-240, Aabb- 754 , aaBb- 746, aabb-260. distance between two genes on the chromosome?
- Is complete linkage shown when heterozygous male and heterozygous female drosophila are crossed?
- What is the trait of this pedigree analysis
- the presence of continuous phenotypic variation in an F2 generatin suggest that a character is inherited by
- multiple answers correct question
- linkage occurs on which chromosome usually and why?
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change