Practice Questions

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#Question id: 10349

Elevated plastid levels of glutamine stimulate the activity of glutamate synthase (also known as glutamine:2- oxoglutarate aminotransferase, or GOGAT). Given below some of the statements about GOGAT, which one of the following is incorrect?

#Plant Biotechnology

Plants contain two types of GOGAT; one accepts electrons from NADH, and the other accepts electrons from ferredoxin (Fd)
The NADH type of the enzyme (NADH-GOGAT) is located in plastids of nonphotosynthetic tissues such as roots or the vascular bundles of developing leaves
The ferredoxin-dependent type of glutamate synthase (Fd-GOGAT) is found in chloroplasts and serves in photorespiratory nitrogen metabolism
This enzyme transfers the amide group of glutamate to 2-oxoglutarate, yielding two molecules of glutamine

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#Question id: 40367

#Botany

Which of the following statements regarding Heterospory and Seed Habit are Correct?

A. Heterospory refers to the production of two distinct types of spores: macrospores (female) and microspores (male).

B. Selaginella and Salvinia are classic examples of homosporous pteridophytes.

C. The retention of the female gametophyte on the parent sporophyte for variable periods is a precursor to the seed habit.

D. In heterosporous plants, the gametophytes are nutritionally independent and free-living

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TLS Online TPP Program

#Question id: 40373

#Botany

Identify the INCORRECT statement regarding the structure of DNA and nucleosomes.

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#Question id: 40374

#Botany

Given below are two statements:

Assertion (A): The drug 'Belladonna', used to dilate pupils during eye exams, is obtained from Atropa belladonna.

Reason (R): Atropa belladonna belongs to the family Solanaceae and contains alkaloids like Atropine.

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TLS Online TPP Program

#Question id: 40375

#Botany

Match the Following (Families & Diagnostic Features)

Match the Plant Family in List-I with its Diagnostic Feature in List-II

LIST-I (Family)	LIST-II (Diagnostic Feature)
A. Brassicaceae	I. Gynobasic Style & Verticillaster Inflorescence
B. Lamiaceae	II. Cruciform Corolla & Replum in Ovary
C. Poaceae	III. Monoadelphous Stamens & Kidney-shaped Anthers
D. Malvaceae	IV. Spikelet Inflorescence & Basal Placentation

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#Question id: 40376

#Botany

Which of the following statements regarding the International Code of Nomenclature for algae, fungi, and plants (ICN) are Correct?

A. A Holotype is the one specimen or illustration used by the author, or designated by the author, as the nomenclatural type.

B. Tautonyms (e.g., Malus malus) are valid and accepted in botanical nomenclature.

C. The principle of Priority states that the first validly published name for a taxon is the correct one to use.

D. Scientific names must be in Latin or treated as Latin, regardless of their derivation.

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#Question id: 40377

#Botany

Given below are two statements:

Assertion (A): The classification system proposed by Bentham and Hooker is considered a Natural System of classification.

Reason (R): It groups plants based on a wide range of morphological characters and natural affinities, rather than just one or two arbitrary traits (like sexual organs).

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