NAT IM Pre Medical Biology Test Preparation for Pakistani Students

Gene of interest is joined with sticky ends with the help of enzyme

• DNA helicase A
• DNA polymerase B
• DNA ligase C
• RNA polymerase D

The general formula of carbohydrate

• C₆H₁₂O₆ A
• C₂₂H₁₁O₁₂ B
• C_n(H₂O)_n C
• C₁₈H₂₀O₁₈ D

• 
  A
• 
  B
• 
  C
• 
  D

All carbons in a monosaccharide have a hydroxyl group except

• One carbon A
• 3-carbons B
• 2-carbons C
• 4-carbons D

Which of the following phylum have animals show bilateral symmetry

• Annelida A
• Mollusca B
• Arthropoda C
• All of above D

The process of photosynthesis in green plants in

• CO₂ + O₂ +light → CHO +6O₂ +6H₂O A
• 6CO₂ +12H₂O +light → C₆H₁₂O₆+ 6O₂ +6H₂ B
• 6CO₂ +12H₂O → C₆H₁₂O₆ + 6O₂ +6H₂O C
• None D

Plasmids are extra circular DNA molecules having genes for

• Antibiotic resistance A
• Fertility B
• Both A and B C
• None D

The heart of fish have

• Sinus venosus A
• An atrium & ventricle B
• Bulbs arteriosus or conus arteriosus C
• All of above D

The fungal associations with roots of higher plants help______uptake by the plants

• Water A
• Minerals B
• Both a & b C
• None D

Which of the following shapes of bacteria are present

• Cocci A
• Bacilli B
• Spiral C
• All of above D

Cytochromes contain a pigment

• Magnesium A
• Sulphur B
• Phosphorus C
• Iron 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

Plants prepare their own food from simple inorganic material & stored energy there fore these are called

• Heteropha A
• Saprophytes B
• Autotrophs C
• All of above D

Enzymes are composed of

• Carbohydrates A
• Lipids B
• Amino acids C
• All of above D