CUET · BIOLOGY · PYQ PAPER 2023
The role of ethidium bromide in gel electrophoresis is:
- A To separate the DNA fragments in gel electrophoresis
- B To speed up the electrophoresis
- C To neutralize DNA fragments
- D To stain DNA which helps in identifying the desired DNA fragment under UV exposure
Answer & Solution
Correct Answer
(D) To stain DNA which helps in identifying the desired DNA fragment under UV exposure
Step-by-step Solution
Detailed explanation
To stain DNA which helps in identifying the desired DNA fragment under UV exposure
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from BIOLOGY
- Match List-I with List-II
Choose the correct answer from the options given below:List-I (Diseases) List-II (Causative organisms) (A) Pneumonia (I) Microsporum (B) Ringworms (II) Wuchereria bancrofti (C) Elephantiasis (III) Entamoeba histolytica (D) Amoebiasis (IV) Haemophilus influenzae CUET 2025 Medium - Plant which produce seeds without fertilization are called as:CUET 2023 Easy
- The arrangement of the nuclei in a normal embryo sac from the chalazal to micropylar end in dicots is -CUET 2023 Easy
- Which of the following combination of hormones are secreted during pregnancy in humans?
(A) hCG
(B) LH
(C) hPL
(D) Relaxin
Choose the correct answer from the options given below:CUET 2025 Easy - Which one of the following is known as cytokine barriers?CUET 2025 Hard
- Mammals are able to survive in Antarctica or in the Sahara desert as they areCUET 2023 Easy
More PYQs from CUET
- Which of the following statements is not true with reference to a potentiometer ?CUET 2023 Hard
- An inorganic salt taken in a test tube was mixed with freshly prepared ferrous sulphate solution.
Concentrated sulphuric acid was then added along the walls of the test tube.
Predict the formula of the compound formed :CUET 2023 Hard - Helium gas is filled in a transparent balloon which is kept in air. The balloon behaves as:CUET 2023 Easy
- The degree of the differential equation \(\frac{d^2 y}{d x^2}+\left(\frac{d y}{d x}\right)^3=\left(\frac{d^3 y}{d x^3}\right)^2\) is :CUET 2023 Hard
- Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance.The scientist who noted that 'The behaviour of chromosomes was parallel to the behaviour of gene' were: CUET 2023 Medium - Consider a line \(\vec{r}=(\hat{i}+4 \hat{j})+\lambda(2 \hat{i}-2 \hat{j}+3 \hat{k})\), then which of the following statements are correct?
(A) It passes through point \((9,-4,12)\)
(B) It passes through point \((1,4,-1)\)
(C) Its direction cosine's are \(\frac{2}{\sqrt{17}}, \frac{-2}{\sqrt{17}}, \frac{3}{\sqrt{17}}\)
(D) Its Cartesian equation is \(\frac{x-1}{2}=\frac{y-4}{-2}=\frac{z}{3}\)
Choose the correct answer from the options given below:CUET 2025 Easy