Botany Practice Test || Exam Questions (Questions 21-30)

Botany Practice Test (Questions 21-30)

21. Minute separable rounded outgrowths of lichen thallus

A) Cilia B) Soralia C) Soredia D) Ascospore

22. An angiosperm family with syngenesious anther :

A) Fabaceae B) Asteraceae C) Apocynaceae D) Cucurbitaceae

23. Nucleosome – solenoid model was proposed by:

A) Kornberg and Thomas B) Kornberg or Tatum C) Laderberg and Tatum D) Levitzsky

24. Head quarters of the National Biodiversity Authority is at:

A) Pune B) New Delhi C) Mumbai D) Chennai

25. A holoparasite:

A) Viscum B) Rafflesia C) Loranthus D) Santalum

26. The fruit syconium is developed from the inflorescence:

A) Hypanthodium B) Spadix C) Cyathium D) Umbel

27. If a DNA sample has a melting temperature of 84°C and a second sample has a melting temperature of 89°C, what will be your conclusion regarding the base composition of the two samples:

A) First sample has high GC content B) First sample has low AT content C) Second sample has high GC content D) Second sample has low GC content

28. Tissue culture media with thermolabile constitution is sterilized by:

A) Chromatography B) Pasteurization C) Dry heat sterilization D) Ultra filteration

29. If one strand of a DNA has a sequence of 5’ GTA CTG AAC 3’. What is the sequence on its 3’ 5’ strand?

A) GAU GUC UUG B) GAT GAC C) TTC CAT TTG GAC D) CAT GAC TTG

30. Phenotypic ratio in recessive epistasis:

A) 15:1 B) 9:3:4 C) 12:4 D) 9:3:3:1

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