Botany Practice Test || Exam Questions (Questions 11-20)

BOTANY Practice Test (Questions 11-20)

11. Protein gives a brick red colour precipitate in---- reaction.

A) Ninhydrin B) Glyoxylic acid C) Millions D) Biuret

12. Terminalization occurs in:

A) Pachytene and Diakinesis B) Pachytene C) Metaphase & Anaphase D) Diplotene

13. Diaminopimelic acid and teichoic acid be found in:

A) Prokaryotes B) Eukaryotes C) Yeast D) Plastids

14. Albinism is:

A) Lacking phenyl alanine hydroxylase B) Clamping of cells causes vascular obstruction C) Deficiency of an oxidase enzyme D) Absence of tyrosinase

15. Vitamin D3 is:

A) Phylloquinone B) Retinol C) Alpha tocopherol D) Cholecalciferol

16. Coenzyme Q is present in:

A) Plastids B) Mitochondria and microsome C) Nucleolus D) Only mitochondria

17. Direct oxidation pathway can also be called:

A) Monophosphate Shunt B) Pentose phosphate pathway C) Warburg Dickens pathway D) All of these

18. In DNA excision repair mechanism:

A) Chromosome stand is removed B) Altered DNA segment of the DNA is excised and a new patch is synthesized C) Thymine dimers were removed D) Core enzyme is excised

19. Identify the correct statement/s:

A) 1 only B) 1 & 2 only C) 3 & 4 only D) 1 & 3 only

20. In the ovary cavity, pollen tube is guided by:

A) Obturator B) Synergrids C) Egg D) Chalaza