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13 Cards in this Set
- Front
- Back
What does Dna Stand for? |
Deoxyribonucleic Acid |
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Who are the 3 main scientists who found DNA? |
James Watson, Francis Crick, Rosalind Franklin |
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What is a nucleotide? |
Nucleotides see molecules that make up DNA. |
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What 3 parts are nucleotides made out of? |
Phosphate group, sugar, and one of four nitrogen rich bases. |
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What are the 4 bases? |
Adenine, Guanine, Cytosine, Thymine |
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What are each of the bases complementary pair? |
Cytosine and Guanine, Adenine and Thymine |
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What are genes? |
Genes are sections of DNA. DIfferent genes have different lengths and orders of bases |
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How many chromosomes are in human body cells? |
46 (23 each pair) |
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What is a gamete? |
Sex cell. |
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How many chromosomes did you inherit from your mother and father? |
23. Half number of chromosomes (haploid). |
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How many pairs of homologous chromosomes does a human have? How many of these are sex chromosomes? |
Humana have 22 homologous chromosomes and 2 sex chromosomes. |
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What is meant by the term heterozygous? |
If an individual has different alleles, they are heterozygous for that allele. |
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What is an allele? |
Different diversions of a gene that code for different versions of characteristics. |