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प्रश्न
Briefly describe the following:
Polymorphism
उत्तर
Polymorphism is a form of genetic variation in which distinct nucleotide sequence can exist at a particular site in a DNA molecule. This heritable mutation is observed at a high frequency in a population. It arises due to mutation either in somatic cell or in the germ cells. The germ cell mutation can be transmitted from parents to their offsprings. This results in accumulation of various mutations in a population, leading to variation and polymorphism in the population. This plays a very important role in the process of evolution and speciation.
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संबंधित प्रश्न
The genetic marker used as key factor in DNA fingerprinting is _______.
(A) VNTRs
(B) Exons
(C) Introns
(D) DNA probes
“A very small sample of tissue or even a drop of blood can help determine paternity”. Provide a scientific explanation to substantiate the statement.
What is DNA fingerprinting?
In DNA fingerprinting technique, radioactive DNA probe is obtained from______ of female banded krait snake.
(a) X chromosome
(b) Y chromoson1e
(c) X and Y chromosomes
(d) autosome
Briefly describe the technique employed in DNA fingerprinting.
How is repetitive/satellite DNA separated from bulk genomic DNA for various genetic experiments?
What is the principle of DNA profiling?
Similar DNA fingerprinting is obtained for______.
Identify the INCORRECT statement with reference to DNA fingerprinting.
____________ are the DNA sequences which are useful in DNA fingerprinting.
Which of the following result is obtained when DNA sample hybridized with DNA probe is kept in contact with X-ray film?
Identify the criterion for movement of DNA fragments on agarose gel during gel electrophoresis.
DNA having variable length obtained by restriction digestion is called ______.
For which of the following reason/s VNTRs is/are the key factor in DNA profiling?
Match the Column - I with Column - II and select the correct option
| Column - I | Column - II | ||
| (a) | Female banded Krait | (i) | Humulin |
| (b) | Pancreas from dog | (ii) | DNA sample |
| (c) | Hair root of human | (iii) | Insulin extracted and purified |
| (d) | E.coli | (iv) | DNA probe |
The DNA fingerprinting pattern of the child is ______
Polymorphism arises due to ______
Which of the following is not true with respect to INA fingerprinting?
- DNA fingerprinting technique was first developed by Alec Jeffrey.
- DNA profiling is a more recent and more sensitive version of DNA fingerprinting.
- DNA fingerprinting was first used in Britain to verify the parentage of an immigrant, who had left the country and then wanted to return
- In DNA fingerprinting, single stranded radioactive DNA is used as probes.
Choose the correct option.
