NEET Botany MCQs

The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called:

• Bullet square
• Punch square
• Punnett square
• Net square

Complete the flow chart on central dogma.

• (A)-Replication; (B)-Transcription; (C)-Transduction; (D)-Protein
• (A)-Translation; (B)-Replication; (C)-Transcription; (D)-Transduction
• (A)-Replication; (B)-Transcription; (C)-Translation; (D)-Protein
• (A)-Transduction; (B)-Translation; (C)-Replication; (D)-Protein

The factor that leads to Founder effect in a population is:

• Natural selection
• Genetic recombination
• Mutation
• Genetic drift

Mutations in plant cells can be induced by:

• Kinetin
• Infrared rays
• Gamma rays
• Zeatin

Match List-I with List-II. <table> <tr> <th>List-I </th> <th>List-II</th> </tr> <tr> <td>(A)Protoplast fusion</td> <td>(I)Totipotency</td> </tr> <tr> <td>(B)Plant tissue culture</td> <td>(II)Pomato</td> </tr> <tr> <td>(C)Meristem culture</td> <td>(III)Somaclones</td> </tr> <tr> <td>(D)Micropropagation</td> <td>(IV)Virus free plants</td> </tr> </table> Choose the correct answer from the options given below:

• A-II, B-I, C-IV, D-III
• A-III, B-IV, C-I, D-II
• A-IV, B-III, C-II, D-I
• A-III, B-IV, C-II, D-I

During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out:

• RNA
• DNA
• Histones
• Polysaccharides

DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as:

• Yellow bands
• Bright orange bands
• Dark red bands
• Bright blue bands

When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as:

• Biopiracy
• Gene therapy
• Molecular diagnosis
• Safety testing

Which of the following is not an application of PCR (Polymerase Chain Reaction)?

• Molecular diagnosis
• Gene amplification
• Purification of isolated protein
• Detection of gene mutation

Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction)?

• Denaturation, Annealing, Extension
• Denaturation, Extension, Annealing
• Extension, Denaturation, Annealing
• Annealing, Denaturation, Extension