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Quiz 114
Mdcat-past-papers Quiz
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2261. Which one is an example of a nucleotide:
Adenosine
Guanine
ATP
NAD
2262. Each chain of DNA is formed by the union many nucleotides by means of:
Double bond
Phosphodiester bond
Covalent bond
Hydrogen bond
2263. The terminal ends of chromosomes are called:
Satellite
Kinetochore
Nucleolar organizers
Telomeres
2264. The sugar which is part of ribonucleic acid is:
Ribulose
Ribose
Deoxyribulose
Deoxyribose
2265. Which one of the following is found in both messenger RNA and DNA of a mammalian cell?
Double helical structure
Ribose sugar
Thymine
Sugar-phosphate backbone
2266. The four types of fundamental biological molecules present in cytoplasm are carbohydrates, proteins, lipids and:
Enzymes
Hormones
Nucleic acids
Alkaloids
2267. MD is an example of:
Mononucleotide
Trinucleotide
Dinucleotide
Tetranucleotide
2268. The simplest amino acid is:
Lysine
Glycine
alanine
Proline
2269. RV4 does not contain:
Lysine
Cytosine
phosphate
Thymine
2270. Which of the following are cell surface markers?
Glycoproteins
Glycolipids
Glycoacids
Sphingolipids
2271. Except during nuclear division, the nucleus has the chromosome in a loosely coiled state known as:
Gene
Ribosomes
DNA
Chromatin
2272. ___ are made by ___
Ribosomes nucleus
Proteins mRNA
DNA nucleolus
Chromatin – nucleolus
2273. Which of the following is a conjugated molecule?
Protein
Lipid
Glycoprotein
Vitamins
2274. An enzyme and substrate reacts through a special feature or site present on:
Building site
Active site
Catalyst site
Inhibitory site
2275. The non-protein part of protein which is covalently and permanently bounded to enzyme is known as:
Prosthetic group
Co-Factor
Co-Enzyme
Activator
2276. If the detachable co-factor is an inorganic ion then it is designated as:
Co-factor
Holoenzyme
Prosthetic group
Activator
2277. If the co-factor is tightly, permanently and covalently bonded to enzyme then it is called:
Co enzyme
Activator
Prosthetic group
Apo enzyme
2278. The view that active site of enzyme is flexible and when a substrate combines with it, it causes change in enzyme structure is known as:
Lock and Key model
Induced Fit model
Sliding filament model
Specificity model
2279. Enzymes are derived from:
Proteins
Nucleic acids
Carbohydrates
Vitamins
2280. Which molecular structure of enzyme is essential for the activity of enzyme:
Primary
Secondary
Quaternary
Tertiary
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