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Biology

Explain how it is possible for two parents without blue eyes (a recessive trait) to have a child with blue eyes

When the parents are heterozygous individuals (have both dominant and recessive alleles), they can have an offspring with a recessive trait (homozygous recessiv...

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Compare and contrast the structure and properties of phospholipids with those of triglycerides.

The similarities and differences between phospholipids and triglycerides are explained below:

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State whether arteries carry blood towards or away from the heart and then give two features of arteries relating to this role

There are 3 major types of blood vessels

  • Arteries
  • Veins
  • Capillaries 
Arteries are those blood vessels that are responsible...

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Describe the main differences between mitosis and meiosis

There are two different types of cell division.

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What does the hormone insulin do?

Insulin is a hormone that is protein in nature. It consists of two polypeptide chains. It is produced from pancreas that is both exocrine and endocrine gland.&n...

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Describe how an action potential is generated.

Action potential comprises of four major stages 

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Explain the process of osmosis and give an example of where this occurs

Osmosis is the movement of water molecules from the region of high water potential to low water potential through partially permeable membranes.High water poten...

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Explain how blood glucose concentration is controlled in the body

Blood glucose level is maintained with the help of two most important hormones

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Evaluate the pros and cons of breastfeeding.

Breastfeeding is the best way to provide immunity to the child as antibodies are directly transferred from mother to baby; this is something that cannot be prov...

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