what are different features of linkage
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The main features of linkage are given below:
1. Linkage involves two or more genes which are located in the same chromosome in a linear fashion.
2. Linkage may involve either dominant genes or recessive genes or some dominant and some recessive genes.
3. Linkage usually involves those genes which are located closely.
4. Presence of linkage leads to higher frequency of parental types than recombinants in a test cross progeny. When two genes are linked the segregation ratio of a test cross progeny deviates significantly from the 1 : 1 : 1 : 1 ratio.
5. Linkage may involve either two or more desirable traits or all undesirable traits or some desirable and some undesirable traits.
6. Linkage is observed for both oligogenic traits as well as polygenic traits. However, it is more common for the former than latter.
7. Besides pleiotropy, linkage is an important cause of genetic correlation between various plant characters.
8. The strength of linkage depends on the distance between the linked genes. Lesser the distance higher the strength and vice versa.
9. If crossing over does not occur, all the genes located in one chromosome are expected to be inherited together. Thus the maximum number of linkage groups in an organism is equal to its haploid chromosome number.
10. Linkage can be broken by repeated inter-mating of randomly selected plants in segregating populations for several generations.
1. Linkage involves two or more genes which are located in the same chromosome in a linear fashion.
2. Linkage may involve either dominant genes or recessive genes or some dominant and some recessive genes.
3. Linkage usually involves those genes which are located closely.
4. Presence of linkage leads to higher frequency of parental types than recombinants in a test cross progeny. When two genes are linked the segregation ratio of a test cross progeny deviates significantly from the 1 : 1 : 1 : 1 ratio.
5. Linkage may involve either two or more desirable traits or all undesirable traits or some desirable and some undesirable traits.
6. Linkage is observed for both oligogenic traits as well as polygenic traits. However, it is more common for the former than latter.
7. Besides pleiotropy, linkage is an important cause of genetic correlation between various plant characters.
8. The strength of linkage depends on the distance between the linked genes. Lesser the distance higher the strength and vice versa.
9. If crossing over does not occur, all the genes located in one chromosome are expected to be inherited together. Thus the maximum number of linkage groups in an organism is equal to its haploid chromosome number.
10. Linkage can be broken by repeated inter-mating of randomly selected plants in segregating populations for several generations.
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The main features of linkage are given below:
1. Linkage involves two or more genes which are located in the same chromosome in a linear fashion.
2. Linkage may involve either dominant genes or recessive genes or some dominant and some recessive genes.
3. Linkage usually involves those genes which are located closely.
4. Presence of linkage leads to higher frequency of parental types than recombinants in a test cross progeny. When two genes are linked the segregation ratio of a test cross progeny deviates significantly from the 1 : 1 : 1 : 1 ratio.
5. Linkage may involve either two or more desirable traits or all undesirable traits or some desirable and some undesirable traits.
6. Linkage is observed for both oligogenic traits as well as polygenic traits. However, it is more common for the former than latter.
7. Besides pleiotropy, linkage is an important cause of genetic correlation between various plant characters.
8. The strength of linkage depends on the distance between the linked genes. Lesser the distance higher the strength and vice versa.
9. If crossing over does not occur, all the genes located in one chromosome are expected to be inherited together. Thus the maximum number of linkage groups in an organism is equal to its haploid chromosome number.
10. Linkage can be broken by repeated inter-mating of randomly selected plants in segregating populations for several generations.
••••••••••••••••••••••••••••••••••••••••••••••••••
I have done my best.
If
U
Lyk
This
Than
Plz
Mark
As
Brainliest
If
Possible
And
Plz
Follow
Here is ur answer.......
Hope this helps u 99.9%.......
••••••••••••••••••••••••••••••••••
The main features of linkage are given below:
1. Linkage involves two or more genes which are located in the same chromosome in a linear fashion.
2. Linkage may involve either dominant genes or recessive genes or some dominant and some recessive genes.
3. Linkage usually involves those genes which are located closely.
4. Presence of linkage leads to higher frequency of parental types than recombinants in a test cross progeny. When two genes are linked the segregation ratio of a test cross progeny deviates significantly from the 1 : 1 : 1 : 1 ratio.
5. Linkage may involve either two or more desirable traits or all undesirable traits or some desirable and some undesirable traits.
6. Linkage is observed for both oligogenic traits as well as polygenic traits. However, it is more common for the former than latter.
7. Besides pleiotropy, linkage is an important cause of genetic correlation between various plant characters.
8. The strength of linkage depends on the distance between the linked genes. Lesser the distance higher the strength and vice versa.
9. If crossing over does not occur, all the genes located in one chromosome are expected to be inherited together. Thus the maximum number of linkage groups in an organism is equal to its haploid chromosome number.
10. Linkage can be broken by repeated inter-mating of randomly selected plants in segregating populations for several generations.
••••••••••••••••••••••••••••••••••••••••••••••••••
I have done my best.
If
U
Lyk
This
Than
Plz
Mark
As
Brainliest
If
Possible
And
Plz
Follow
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