113921
Description
Flashcards by sammi_taylor01, updated more than 1 year ago
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Created by sammi_taylor01
over 11 years ago
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| Question | Answer |
| What is a gene? | A section of DNA that codes for different polypeptides |
| What do genes determine? | The nature and development of all organisms. |
| A gene is a.. | sequence of amino acids |
| If the sequence of an amino acid alters, what happens consequently to the rest of the cell? | sequence of AA's alter, polypeptides alter and therefore the proteins made (or not made) alter, different enzymes and so may not be able to carry out thei function efficiently/at all |
| What is the triplet code? | Scientists suggested that their must be three bases that code for each amino acid. |
| How many amino acids regularly occur in proteins (approximately)? | 20 |
| How many different bases are present in DNA? | Four- adenine, thymine, guanine and cytosine |
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