What is true for plasmid
- Plasmids are widely used in gene transfer
- These are found in virus
- Plasmid contain gene for vital activities
- These are main part of chromosome
The Correct Option is A
Solution and Explanation
The statement that is true for plasmids is: (A) Plasmids are widely used in gene transfer. Plasmids are small, circular pieces of DNA that can be found in many types of cells, including bacteria. They are often used in genetic engineering and biotechnology for gene transfer and as vectors to introduce specific genes into host organisms. The other statements are not accurate: (B) Plasmids are not found in viruses. They are typically found in bacteria, archaea, and some eukaryotic cells. (C) While plasmids can contain genes that provide certain advantages to the host cell, they do not necessarily contain genes for all vital activities. (D) Plasmids are separate from the main chromosomal DNA in a cell and are not considered a main part of the chromosome.
Top Questions on Biotechnology
- Match List-I with List-II:Choose the correct answer from the options given below:
List-I List-II A. ETS Complex I I. NADH Dehydrogenase B. ETS Complex II IV. Succinate Dehydrogenase C. ETS Complex III II. Cytochrome bc1 D. ETS Complex IV III. Cytochrome C oxidase - NEET (UG) - 2024
- Biology
- Biotechnology
- Match List-I with List-II:Choose the correct answer from the options given below:
List-I List-II A. Abscisic acid I. Promotes female flowers in cucumber B. Ethylene II. Helps seeds to withstand desiccation C. Gibberellin III. Helps in nutrient mobilisation D. Cytokinin IV. Promotes bolting in beet, cabbage etc - NEET (UG) - 2024
- Biology
- Biotechnology
- Select the restriction endonuclease enzymes whose restriction sites are present for the tetracycline resistance (tetR) gene in the pBR322 cloning vector
- NEET (UG) - 2024
- Biology
- Biotechnology
- Following are the steps involved in action of toxin in Bt. Cotton
A. The inactive toxin converted into active form due to alkaline pH of gut of insect.
B. Bacillus thuringiensis produce crystals with toxic insecticidal proteins.
C. The alkaline pH solubilises the crystals.
D. The activated toxin binds to the surface of midgut cells, creates pores and causes death of the insect.
E. The toxin proteins exist as inactive protoxins in bacteria.
Choose the correct sequence of steps from the options given below:- NEET (UG) - 2024
- Biology
- Biotechnology
- The Bt toxin in genetically engineered Bt cotton kills the pest by:
- NEET (UG) - 2024
- Biology
- Biotechnology
Questions Asked in NEET exam
- Match List I with List II :Choose the correct answer from the options given below :
List - I List – II A. Residual Volume i. Maximum volume of air that can be breathed in after forced expiration B. Vital Capacity ii. Volume of air inspired or expired during normal respiration C. Expiratory Capacity iii. Volume of air remaining in lungs after forcible expiration D. Tidal Volume iv. Total volume of air expired after normal inspiration - NEET (UG) - 2024
- The respiratory system
- In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m-2)yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
- NEET (UG) - 2024
- Ecosystems
- These are regarded as major causes of biodiversity loss:
A. Over exploitation
B. Co-extinction
C. Mutation
D. Habitat loss and fragmentation
E. Migration
Choose the correct opisdn:- NEET (UG) - 2024
- loss of biodiversity
- Match List I with List II:Choose the correct answer from the options given below:
List I List II A Robert May I Species-Area relationship B Alexander von Humboldt II Long term ecosystem experiment using out door plots C Paul Ehrlich III Global species diversity at about 7 million D David Tilman IV Rivet popper hypothesis - NEET (UG) - 2024
- Species diversity
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
Concepts Used:
Enzymes - Biology
Enzymes are proteins that help accelerate metabolism or the chemical reactions in our bodies. They build some substances and decompose others. All living creatures have enzymes.
Our bodies naturally build enzymes. But enzymes are also in mass produce products and food.
One of the most important roles of enzymes is to succor digestion. The process of turning the food that we eat into energy is called digestion. For instance, there are enzymes in our saliva, pancreas, stomach, and intestines. They decompose fats, proteins, and carbohydrates. Enzymes make use of these nutrients for growth and cell repair.