Genetics 2000

4. polymerase _____ to check if each base they add is correct.
5. region of a gene that controls whether a gene is transcribed.
7. what prevents supercoiling during replication?
8. the nitrogenous base that pairs with Uracil.
11. the synthesis of an RNA molecule from a DNA pattern.
12. how do the leading and lagging strands run in relation to each other?
14. DNA strands are facilitated to join together by a type of enzyme called?
16. what molecules coordinate signals from activators?
17. AUG is what type of codon
19. a protein that has a negative effect on gene expression.
22. DNA to MRNA to protein is an example of what?
23. what enzyme opens the DNA at the replication fork?
27. has one less oxygen atom than ribose.
28. the addition of a cap on the 5’end of a nucleotide chain, protects it from what?
29. the nitrogenous base that pairs with Guanine.
30. type of RNA that contains the information which will be translated into a polypeptide.

1. the rule that states that in DNA the quantity between bases A and T and between bases G and C must always be equal is named after this biochemist.
2. noncoding DNA strand of a gene
3. non-abbreviated first part of DNA.
6. female English chemist whose work was central in the understanding of the molecular structure of DNA.
9. an RNA polymerase synthesizes short RNA primers which are complementary to template DNA
10. cytosine and thymine are what type of heterocyclic nitrogenous bases
13. avery and Macleod and McCarty all discovered genes are present in ____.
15. what component of the DNA strand has the structural components: a 5-ribose sugar, a phosphate group, and a nitrogenous base pair?
18. When a DNA molecule is copied
20. guanine and adenine are what type of heterocyclic nitrogenous bases
21. type of cell that contains two sets of homologous chromosomes.
24. molecular structure of nucleic acids was discovered by Watson and Crick in what month of 1953?
25. the nitrogenous base that pairs with Adenine.
26. famous genetic scientist