MCQ

DNA, RNA and Genetic Code

Which diagram shows the bond linking the individual units of a nucleic acid?  

2012 Winter

3

MCQ

DNA, RNA and Genetic Code

Which nucleic acid bases are pyrimidines?

2014 Summer

MCQ

DNA, RNA and Genetic Code

Which statements about complementary base pairing are correct? 1. Cytosine forms two hydrogen bonds with guanine. 2. Purines and pyrimidines are dif...

2013 Winter

2

MCQ

CH1 - CELL STRUCTURE

Which group of structures are visible in a suitably stained plant cell using a high power (x400) light microscope? [Table_1]

2012 Summer

4

MCQ

CH1 - CELL STRUCTURE

What are always present in prokaryote cells?

2012 Summer

3

MCQ

CH1 - CELL STRUCTURE

The following are all features of eukaryotic cells.1. chloroplast2. endoplasmic reticulum3. lysosome4. mitochondrion5. nucleusWhich of these have a do...

2012 Summer

5

MCQ

CH1 - CELL STRUCTURE

The magnification of the photomicrograph is \times 4000. What is the actual size of the nucleolus?

2012 Summer

4

MCQ

CH1 - CELL STRUCTURE

A microscope has a resolution of 200 nm. Which of the following organelles would not be resolved using this microscope?

2012 Summer

3

MCQ

CH1 - CELL STRUCTURE

Tests were performed on samples from a mixture of biological molecules.When iodine in potassium iodide solution was added to a sample, the mixture tur...

2012 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which of the statements about polysaccharides can be used to describe both amylopectin and cellulose? 1. adjacent glucose molecules are rotated by 180...

2012 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which molecule in the key is sucrose?

2012 Summer

4

MCQ

CH2 - BIOLOGICAL MOLECULES

Which molecules have a structural formula that contains C=O bonds?1. fatty acids2. glucose3. glycerol

2012 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which level of protein structure maintains the globular shapes of enzymes?

2012 Summer

5