Biology Module 1

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Where are chromosomes found within a cell?
The Nucleus.
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True or false - in humans, chromosomes are usually found in groups of four?
False - they come in pairs.
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What are alleles?
Alleles are different versions of the same gene.
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How do genes control the different characteristics we develop?
Each gene is a code for making a certain protein. Proteins are building blocks of cells. Having different versions of proteins means that we end up with different characteristics.
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What do the words 'genotype' and 'phenotype' mean?
GENOTYPE - is the genetic makeup of a cell, organism or an individual usually with reference to a specific characteristic under consideration. PHENOTYPE - Means the physical appearance of an organism as distinguished from its genetic makeup.
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Is a persons weight determined by genes, the environment or a combination of both?
A combination of both.
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Name the two types of sex cell.
Egg and Sperm.
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How many chromosomes are found in sex cells?
46 - 23 from each parent.
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Why do most children look a bit like both of their parents but not identical?
A child is only given one chromosome from each parent so they only inherit some of their parents genes but not all.
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What is the difference between homozygous and heterozygous?
HOMOZYGOUS - Means to carry two genes that are the same.
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Card 2

Front

True or false - in humans, chromosomes are usually found in groups of four?

Back

False - they come in pairs.

Card 3

Front

What are alleles?

Back

Preview of the front of card 3

Card 4

Front

How do genes control the different characteristics we develop?

Back

Preview of the front of card 4

Card 5

Front

What do the words 'genotype' and 'phenotype' mean?

Back

Preview of the front of card 5
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