- 1(current)
Q. No.When Morgan hybridised yellow-bodied, white-eyed females to brown-bodied, red-eyed males and intercrossed their F1 progeny, the F2 ratio deviated very significantly from the 9:3:3:1 ratio. This can be attributed to the fact that:
| 1. | The genes are located on the X and Y chromosomes. |
| 2. | Fruit fly has abnormal chromosomes. |
| 3. | The genes are located on the X chromosome. |
| 4. | The genes exhibit incomplete dominance. |
Subtopic: Chromosomal Basis of Inheritance: Introduction | Chromosomal Basis of Inheritance: Further Considerations | Understanding Linkage |
68%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Morgan coined the term ______ to describe this physical association of genes on a chromosome and the term _________ to describe the generation of non-parental gene combinations.
| 1. | Recombination; Linkage | 2. | Linkage, Mutation |
| 3. | Transposition, Mutation | 4. | Linkage, Recombination |
Subtopic: Understanding Linkage | Recombination & Gene Mapping |
86%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
The number of linkage groups in a plant with a normal diploid number of chromosomes in a somatic cell as 16 will be:
1. 16
2. 8
3. 4
4. It is impossible to tell from the information provided.
Subtopic: Understanding Linkage |
66%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
If the strength of linkage between y and w is higher than w and m [y, w and m are three linked genes located on a chromosome]:
| 1. |
the number of recombinants between y and w will be higher than the number of recombinants between w and m.
|
| 2. |
the number of recombinants between y and w will be lower than the number of recombinants between w and m.
|
| 3. |
the number of recombinants between y and w will be equal to the number of recombinants between w and m.
|
| 4. |
no recombinants between y and w and between w and m will be formed as they are linked.
|
Subtopic: Understanding Linkage |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
If mapping of genes is carried out based on linkage analysis, it:
| 1. | helps in identifying the physical location of genes on a chromosome |
| 2. | determines the size of chromosomes |
| 3. | predicts the number of chromosomes in an organism |
| 4. | reveals the function of genes in an organism |
Subtopic: Understanding Linkage | Linkage Types |
92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.