DNA and Inheritance Flashcards

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Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What is heredity?

Heredity is the process by which genetic information is passed from parents to offspring, determining inherited characteristics like hair colour, eye colour, or blood group.

What is DNA and what does it stand for?

DNA stands for deoxyribonucleic acid. It is a molecule that contains genetic information determining all of our inherited characteristics.

How many pairs of chromosomes do humans have?

Humans have 23 pairs of chromosomes, which means 46 individual chromosomes in each cell.

What is a gene?

A gene is a section of DNA that codes for a particular characteristic.

Alleles are different forms of a gene, with one inherited from each parent.

What did James Watson and Francis Crick discover about DNA?

James Watson and Francis Crick discovered the double helix structure of DNA in the 1950s, helping scientists understand how genetic information is stored and passed on.

What is the genome?

The genome is the complete set of genetic instructions found in an organism, made up of all its genes. It is what makes each individual unique.

Revision Notes
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