Match Column - I with Column - II.

NEET-2021 [Mineral-Nutrition] [class-xi ]

• A-II, B-IV, C-I, D-III,
• A-I, B-II, C-III, D-IV,
• A-III, B-I, C-IV, D-II,
• A-IV, B-III, C-II, D-I,
Correct Option: A  [ A-II, B-IV, C-I, D-III, ]

Remark:

Which of the following statements is incorrect?

NEET-2021 [Photosynthesis-in-Higher-Plants] [class-xi ]

• Both ATP and NADPH + H⁺ are synthesized during non-cyclic photophosphorylation.
• Stroma lamellae have PS I only and lack NADP reductase.
• Grana lamellae have both PS I and PS II.
• Cyclic photophosphorylation involves both PS I and PS II.
Correct Option: D  [ Cyclic photophosphorylation involves both PS I and PS II. ]

Remark:

Which of the following statements is incorrect?

NEET-2021 [Respiration-in-Plants] [class-xi ]

• During aerobic respiration, role of oxygen is limited to the terminal stage.
• In ETC (Electron Transport Chain), one molecule of NADH + H⁺ gives rise to 2 ATP molecules, and one FADH₂ gives rise to 3 ATP molecules.
• ATP is synthesized through complex V.
• Oxidation-reduction reactions produce proton gradient in respiration.
Correct Option: B  [ In ETC (Electron Transport Chain), one molecule of NADH + H⁺ gives rise to 2 ATP molecules, and one FADH₂ gives rise to 3 ATP molecules. ]

Remark:

In some members of which of the following pairs of families, pollen grains retain their viability for months after release?

NEET-2021 [Sexual-Reproduction-in-Flowering-Plants] [class-xii ]

• Poaceae ; Rosaceae
• Poaceae; Leguminosae
• Poaceae; Solanaceae
• Rosaceae ; Leguminosae
Correct Option: D  [ Rosaceae ; Leguminosae ]

Remark:

What is the role of RNA polymerase III in the process of transcription in eukaryotes?

NEET-2021 [Molecular-Basis-of-Inheritance] [class-xii ]

• Transcribes rRNAs (28S, 18S and 5.8S)
• Transcribes tRNA, 5s rRNA and snRNA
• Transcribes precursor of mRNA
• Transcribes only snRNAs
Correct Option: B  [ Transcribes tRNA, 5s rRNA and snRNA ]

Remark:

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as:

NEET-2021 [Molecular-Basis-of-Inheritance] [class-xii ]

• Satellite DNA
• Repetitive DNA
• Single nucleotides
• Polymorphic DNA
Correct Option: B  [ Repetitive DNA ]

Remark:

Identify the correct statement.

NEET-2021 [Molecular-Basis-of-Inheritance] [class-xii ]

• In capping, methyl guanosine triphosphate is added to the 3' end of hnRNA.
• RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria.
• The coding strand in a transcription unit is copied to an mRNA.
• Split gene arrangement is characteristic of prokaryotes.
Correct Option: B  [ RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria. ]

Remark:

Plasmid pBR322 has PstI restriction enzyme site within gene amp^R that confers ampicillin resistance. If this enzyme is used for inserting a gene for β-galactoside production and the recombinant plasmid is inserted in an E.coli strain

NEET-2021 [Biotechnology-Principles-and-Processes] [class-xii ]

• it will not be able to confer ampicillin resistance to the host cell.
• the transformed cells will have the ability to resist ampicillin as well as produce β-galactoside.
• it will lead to lysis of host cell.
• it will be able to produce a novel protein with dual ability.
Correct Option: A  [ it will not be able to confer ampicillin resistance to the host cell. ]

Remark:

Now a days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complimentary DNA in a clone of cells, followed by its detection using autoradiography because:

NEET-2021 [Biotechnology-and-its-applications] [class-xii ]

• mutated gene partially appears on a photographic film.
• mutated gene completely and clearly appears on a photographic film.
• mutated gene does not appear on a photographic film as the probe has no complimentarity with it.
• mutated gene does not appear on photographic film as the probe has complimentarity with it.
Correct Option: C  [ mutated gene does not appear on a photographic film as the probe has no complimentarity with it. ]

Remark:

In the exponential growth equation
N_t = N₀e^rt, e represents:

NEET-2021 [Organisms-and-Populations] [class-xii ]

• The base of number logarithms
• The base of exponential logarithms
• The base of natural logarithms
• The base of geometric logarithms
Correct Option: C  [ The base of natural logarithms ]

Remark: