Solved Past Papers MCQs of MDCAT for the preparation of Medical and Dental College Admission Test and other medical tests.
BIOLOGY
Q.133 When chromosomes uncoil, the nucleoli are reformed and two nuclei are the two poles of the
cell; stage is known as
A) Prophase C) Telophase
B) Metaphase D) Anaphase
Q.134 Mental retardation, short stature, broad face and squint eyes are the symptoms of
A) Down’s syndrome C) Turner’s syndrome
B) Klinefelter’s syndrome D) XYZ syndrome
Q.135 Chiasmata formation takes place during the process which is known as
A) Crossing Over C) Pairing
B) Attachment D) Leptotene
Q.136 Healing of a wound and repair is the phenomenon which takes place by the process of
A) Mitosis C) Cell Growth
B) Meiosis D) Mitosis & Meiosis
Q.137 Which one of the following is the main cause of cancer?
A) Mutation C) Regulated Mitosis
B) Controlled Cell Division D) Haploid Division
Q.138 The covalent bond formed between two monosaccharides is called
A) Glycosidic Bond C) Peptide Bond
B) Hydrogen Bond D) Disulphide
Q.139 The bond formed between glucose and fructose form sucrose is
A) 1,4 Glycosidic Linkage C) 1,6 Glycosidic Linkage
B) 1,2 Glycosidic Linkage D) 1,3 Glycosidic Linkage
Q.140 In an amino acid in which the R-group is H, its name will be
A) Alanine C) Leucine
B) Glycine D) Valine
Q.141 Fatty acid are the organic compounds containing hydrogen, oxygen and one of the following are
A) –COOH C) Acyl
B) –NH2 D) Sucrose
Q.142 Posomes are used in gene therapy against
A) Hypercholesterolemia C) Cystic Fibrosis
B) Coronary Artery Angioplasty D) Severe Combined Immunodeficiency Syndrome (SCID)
Q.143 Genetically engineered cells are introduced into bone marrow cells in the treatment of
A) Hypercholesterolemia C) Cystic Fibrosis
B) Severe Combined Immunodeficiency Syndrome (SCID) D) Coronary Artery Angioplasty
Q.144 Which one of the following is depleting and causing thinning of ozone?
A) Chlorine C) Chlorofluorocarbon
B) Bromine D) Carbon
Q.145 The typical environment of a particular organism population community is called
A) Niche C) Habitat
B) Ecosystem D) Biosphere
Q.146. Excessive enrichment of water with nutrients by human activity by which large amount of living organic matter grows is called
A) Archeotrophication C) Enrichment
B) Eutrophication D) Low Trophication
Q.147 In an ecosystem, mycorrhizae is an example of
A) Symbiosis C) Commensalism
B) Predation D) Parasitism
Q.148 Successive stages of eating and being eaten by which recycling of materials and flow of energy takes place is called
A) Food Chain C) Trophic Level
B) Food Web D) Food Link
Q.149 The sex of individuals of next generation always depends on one of the parents who is
A) Heterogametic C) Isogametic
B) Homogametic D) Isomorphic
Q.150 Which of the following will be hemophilic?
A) XHXh C) XhY
B) XHXH D) XHY
151 Which of the following is an example of X-linked recessive trait in humans?
A) Hypophospatemic Rickets C) Baldness
B) Colour Blindness D) Beard Growth
Q.152 Which trait in human in an example of multiple alleles?
A) Eye Colour C) ABO-Blood Group
B) Skin Colour D) Rh-Blood Group
Q.153 When a gene pair at one locus interacts with another gene at another locus, the interaction is called
A) Dominance C) Pleiotropy
B) Multiple Alleles D) Epistasis
Q.154 The combination of a pentose sugar with a base result in a compound is known as
A) Nucleotide C) Nucleic Acid
B) Nucleoside D) Polynucleotide
Q.155 An enzyme and substrate reacts through a special feature or site present in enzyme:
A) Building Site C) Catalyst Site
B) Active Site D) Inhibition Site
Q.156 The non-protein part of enzyme which is covalently and permanently bonded is called
A) Prosthetic Group C) Co-Enzyme
B) Co-Factor D) Activator
Q.157 One of the pyrimidine bases is absent in DNA
A) Uracil C) Cytosine
B) Thymine D) Adenine
Q.158 Enzymes increase the rate of reaction by
A) Increasing Temperature C) Decreasing Activation Energy
B) Decreasing pH D) Increasing Activation Energy
Q.159 Which one of the following diseases caused by enveloped RNA virus and spread in epidemic form?
A) Influenza C) Polio
B) Herpes Simplex D) Small Pox
Q.160 The structure which contains the gene for drug resistance bacteria are
A) Nucleoids C) Chromatin Bodies
B) Mesosomes D) Plasmids
READ MORE:
- Solved Past Papers MCQs of MDCAT 1
- Solved Past Papers MCQs of MDCAT 2
- Solved Past Papers MCQs of MDCAT 3
