Study the image below and answer the questions that follow. Picture12.png 1. Identify the artifact on this image (1) 2. What is the cause of this  artifact? (1) 3. Suggest four ways of avoiding this artefact (4)

Which statement correctly defines polar body?

What is the simple explanation as to why children can have different skin tones although they have equal exposure to sunlight and have the same mother and father?

Specialized cells within multicellular organisms

Cell division in eukaryotic cells is a complex process because of

The phase of mitosis in which the chromosomes begin to uncoil and form chromatin is called _______________________.   

What phase of mitotic cell division is depicted in the image below?   

What is the importance crossing-over?

In order for a new nucleotide to be joined to a growing nucleic acid, it must be linked to the phosphate group on the 5′ end of the previous nucleotide.

Which of the following does not occur as a result of meiosis?