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13 Cards in this Set
- Front
- Back
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Name the cell division body cells divide by? |
Mitosis |
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What are the chromosomes? |
They contain the genetic information. They are made up of large molecules of DNA |
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What is the structure of DNA? |
The DNA has a double helical structure |
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What is a gene? |
It is a section of DNA that codes for a particular combination for an amino acid, which make a specific protein |
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What is a genetic code? |
A section of three bases on the DNA that coded for an amino acid |
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What are alleles? |
Different forms of the gene is called allele |
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What is a dominant allele? |
An allele that controls the development of a characteristic when it is present on only one of the chromosomes |
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What is a recessive allele? |
An allele that controls the development of a characteristic when it is present on only one of the chromosomes |
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Describe the two stages of mitosis |
Copies of genetic material are made Then the cell divides once to form two genetically identical body cells |
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When does mitosis occur? |
During growth To produce replacement cells |
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How many sets of chromosomes do sex cells have? |
Two sets of chromosomes (23 pairs) |
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How many sets of chromosomes do sex cells have? |
One set of chromosomes |
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What are gametes? |
Sex cell |
