NAT IM Pre Medical Biology Test Preparation for Pakistani Students

Which one is not true about the presence of gases in air

• It consists of 79% N A
• It consists of 20% O₂ B
• It consists of 0.03% CO₂ C
• It consists of 80% inert gases D

Enzymes involved in the synthesis of protein are integral part of

• Mitochondria A
• Ribosomes B
• EPR C
• Nucleus D

• 
  A
• 
  B
• 
  C
• 
  D

Rounded and wrinkled of seeds and all tall or dwarf plants represents 

• Genotype A
• Genes B
• Phenotype C
• Homozygous genotype D

Division of nucleus is called

• Nuclear division A
• Karyokinesis B
• Cytokinesis C
• All of above D

When Cocci occur in pairs then arrangement is called

• Diplococcus A
• Staphylococcus B
• Sarcina C
• All of above D

Photosynthesis occurs only during

• Day A
• Night B
• Day and night C
• Evening D

A programmed series of stages from a simpler of more complex forms is

• Development A
• Growth B
• All above C
• None D

If two generation are vegetatively similar such alternation of generation is refered to as

• Isomorphic A
• Heteromorphic B
• Saprophytic life cycle C
• None D

Which of the following is a artificial asexual reproduction in plants

• Multiple fission A
• Binary  Fission B
• Grafting C
• All of above D

Abino is a ______ trait in humans

• Dominant A
• Recessive B
• Both a and b C
• None D

In plants which of the cells directly involved in gaseous exchange

• Xylem A
• Phloem B
• Mesophyll cells C
• Air spaces of hemoglobin cells D

Different alleles of a gene that are both expressed in a heterozygous condition are called

• Co dominance A
• Incomplete dominance B
• Over dominane C
• Complete dominance D

The part of earth inhabited by living organisms and non-living components is called

• Ecosystem A
• Biosphere B
• Habitat C
• Niche D