51.

The taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of 

• Monographs

• Flora

• Both (a) and (b)

• None of these

Which one of the following combination is incorrect?

• Rio convention → Air pollution

• Kyoto protocol  → Climate change

• Montreal Protocol → Ozone depletion

• Ramsar Convention → Wetland conservation

Monoclonal antibodies and polyclonal antibodies are produced by

• T-memory cells

• NK- cells

• Plasma cells of B-lymphocytes

• Memory cells of B-lymphocytes

All monerons

• Contain DNA and RNA

• Demonstrate a long circular strand of DNA, not formed enclosed in a nuclear membrane

• Are bacteria

• All of the above

Match the following Columns

Column I		Column II
A.	Opuntia	1.	Stem thorns
B.	Asparagus	2.	Phylloclades
C.	Citrus	3.	Cladodes

• A	B	C
  1	2	3

• A	B	C
  2	3	1

• A	B	C
  3	2	1

• A	B	C
  2	1	3

The method of directly injecting a sperm into ovum in assisted reproductive technology is called.

• GIFT

• ZIFT

• ICSI

• ET

The appearance of antibiotic-resistant bacteria is an example of

• adaptive radiation

• transduction

• Pre-existing variation

• divergent evolution in the population

Roquefort cheese is ripened by using a

• type of yeast

• fungus

• bacterium

• cyanobacteria

Which one of the following graphs correctly describes disruptive selection? When studying fitness level associated with body size?

Munch hypothesis is based on

• Translocation of food due to Turgor Pressure (TP) gradient and imbibition force

• Translocation of food due to Turgor Pressure (TP) gradient

• Translocation of food due to imbition force

• None of the above