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Biological Classification

NEET (UG) 2019MCQEasy📈 Topic in 38% papers+4−1
Ques. 1NEET (UG) 2019

Which of the following statement is incorrect?

  1. Conidia are produced exogenously and ascospores endogenously.
  2. Yeasts have filamentous bodies with long thread-like hyphae.
  3. Morels and truffles are edible delicacies.
  4. Claviceps is a source of many alkaloids and LSD.

Answer

(2) Yeasts have filamentous bodies with long thread-like hyphae.

Solution

(1) In ascomycetes, asexual spores (conidia) are produced exogenously on conidiophores, while sexual spores (ascospores) are produced endogenously in asci. Correct.

(2) As per NCERT, fungi are filamentous with the exception of yeasts, which are unicellular. ∴ Yeasts do not have long thread-like hyphae. Incorrect.

(3) Morels and truffles (ascomycetes) are edible and considered delicacies. Correct.

(4) Claviceps (ergot fungus) is a source of many alkaloids and LSD. Correct.

Answer: (2)

Keep practising — Biological Classification

Ques. 2NEET (UG) 2019

Match Column-I with Column –II. Choose the correct answer from the options given below :

  1. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  2. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  3. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
Ques. 3NEET 2018

Which among the following is not a prokaryote?

  1. Mycobacterium
  2. Saccharomyces
  3. Oscillatoria
  4. Nostoc
Ques. 4NEET 2018

Select the wrong statement.

  1. Mushrooms belong to basidiomycetes.
  2. Cell wall is present in members of fungi and plantae.
  3. Pseudopodia are locomotory and feeding structures in sporozoans.
  4. Mitochondria are the powerhouse of the cell in all kingdoms except monera.
Ques. 5NEET 2018

After karyogamy followed by meiosis, spores are produced exogenously in

  1. Saccharomyces
  2. Neurospora
  3. Alternaria
  4. Agaricus
Ques. 6NEET 2018

Which of the following organisms are known as chief producers in the oceans?

  1. Euglenoids
  2. Cyanobacteria
  3. Dinoflagellates
  4. Diatoms
Ques. 7NEET 2018

Ciliates differ from all other protozoans in

  1. having a contractile vacuole for removing excess water
  2. having two types of nuclei
  3. using flagella for locomotion
  4. using pseudopodia for capturing prey
Ques. 8NEET 2017

Which of the following are found in extreme saline conditions?

  1. Eubacteria
  2. Cyanobacteria
  3. Mycobacteria
  4. Archaebacteria
Ques. 9NEET 2017

Viroids differ from viruses in having

  1. DNA molecules without protein coat
  2. RNA molecules with protein coat
  3. RNA molecules without protein coat
  4. DNA molecules with protein coat
Ques. 10NEET 2017

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

  1. Pseudomonas
  2. Mycoplasma
  3. Nostoc
  4. Bacillus
Ques. 11NEET 2016 (Phase 1)

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the

  1. methanogens
  2. eubacteria
  3. halophiles
  4. thermoacidophiles.

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