Question:
Suppose DNA samples collected for DNA fingerprinting analysis are less than the required quantity. Which of the following techniques is helpful to make the samples sufficient for above analysis?
Suppose DNA samples collected for DNA fingerprinting analysis are less than the required quantity. Which of the following techniques is helpful to make the samples sufficient for above analysis?
Updated On: Apr 9, 2025
- Electrophoresis
- Chromatography
- PCR
- DNA probing
Show Solution
Verified By Collegedunia
The Correct Option is C
Approach Solution - 1
PCR (Polymerase Chain Reaction) is a technique used to amplify (make millions of copies of) a small amount of DNA, making it sufficient for analysis like DNA fingerprinting.
- (A) Electrophoresis: Separates DNA fragments by size but does not amplify DNA.
- (B) Chromatography: Separates molecules based on chemical properties but cannot replicate DNA.
- (D) DNA probing: Identifies specific DNA sequences using labeled probes but does not increase DNA quantity.
Thus, PCR (C) is the only technique that solves the problem of insufficient DNA samples.
Was this answer helpful?
1
0
Show Solution
Verified By Collegedunia
Approach Solution -2
PCR (Polymerase Chain Reaction): Amplifies tiny DNA samples exponentially.
Other techniques:
- (A) Electrophoresis: Separates DNA by size.
- (B) Chromatography: Separates molecules by affinity.
- (D) DNA probing: Detects specific sequences.
The correct answer is (C) PCR.
Was this answer helpful?
0
0
Top KCET Biology Questions
- Relate Column I with Column II with regard to predatory behaviour:
Column I Column II 1. Calotropis p. Invertebrates 2. Pisaster q. Distasteful 3. Monarch butterfly r. Cryptically colored 4. Frogs s. Cardioglycoside - Small mammals and birds are rarely found in polar regions. The reason is that
Match Column I and Column I
Column I Column II 1 Narrowly utilitarian argument p Conserving biodiversity for major ecosystem services 2 Broadly utilitarian argument q Every species has an intrinsic value and moral duty to pass our biological legacy in good order to future generation. 3 Ethical argument r Receiving benefits like food, medicine & industrial products. - Identify the correct statement/s about ex situ conservation. Advanced ex situ conservation includes i. Cryopreservation of gametes. ii. Plant tissue culture method. iii. Seed bank. iv. In vitro fertilisation.
- Identify the odd one out.
View More Questions
Top KCET PCR Questions
Top KCET Questions
- Which of the following is not true for oxidation?
- If $a, b$ and $c \in N$ which one of the following is not true ?
- When $50\, cm ^{3}$ of $0.2\, N$ $H_{2} SO _{4}$ is mixed with $50 cm ^{3}$ of $1 N\, KOH$, the heat liberated is :
- If $a | (b + c)$ and $a| (b-c)$ where $a,b,c \in \, N $ then
- Which of the following is NOT a pair of functional isomers?
View More Questions