Name: _Answer Key__ Pretest score: ______/48
Posttest score:______/48
Ch 13 Pretest: RNA and Protein Synthesis
Matching: Place the letter of the word that best answers the question on the blank.
Letters may be used once, more than once or not at all
1. ___V___ matches amino acids to the A. amino acid
growing polypeptide B. anticodon
2. ___X___ process of rewriting DNA into RNA, C. codon
takes place inside the nucleusD. chromosome mutation
3. __AA__ nitrogen base that binds with adenine E. deletion
in RNAF. frameshift mutation
4. ___J___ any error in the DNA sequence, or G. inversion
gene expressionH. mRNA
5. ___B___ 3-nucleotide sequence on the tRNAI. mutagen
that matches mRNAJ. mutation
6. ___H___ coded message copied from DNA that K. nondisjunction
leaves the nucleusL. peptide bond
7. ___A___ building blocks of proteinsM. point mutation N. polypeptide
8. ___Q___ five carbon sugar found in RNAO. promoter P. protein synthesis
9. ___I___ cause of a mutationQ. ribose
R. rRNA
10. ___E___ frameshift mutation where a nucleotideS. RNA
has been removedT. RNA polymerase
11. ___P___ process of making proteins out of RNAU. substitution
(in general) V. tRNA
12. ___L___ forms between two amino acids to make W. termination signal
a proteinX. transcription
13. ___G___ chromosome mutation where segment Y. translation
breaks off, flips around and reattachesZ. translocation
14. ___C___ three nitrogen bases on mRNA, acts as AA. uracil
a code
15. ___Y___ process of mRNA being decoded into a protein, done by ribosomes
16. ___N___ chain of amino acids
17. ___R___ material that makes up ribosomes
18. _M/F_ general term for any change in a DNA or RNA sequence
19. ___T___ enzyme responsible for copying DNA onto mRNA
20. ___S___ single strand of ribose + phosphate + nitrogen base
21. ___O___ region of DNA where RNA polymerase binds to start copying a gene
22. ___D___ general name for any change to a number of genes
23. ___W___ sequence of DNA that tells RNA polymerase to stop copying DNA
24. ___K___ mutation where homologs fail to separate during metaphase I of meiosis
25. _M/F_ general name for a change to a single base, or a few bases
26. ___E___ when a piece of genetic material is not equally exchanged during
crossing over of meiosis
27. __U___ mutation where 1 base is used instead of another
There are three types of RNA listed below. Name each one and tell its function in
transcription/translation (protein synthesis)
28. mRNA(transcription & translation) takes info from DNA out of nucleus to be decoded
29. rRNA(translation) makes up ribosome that decode mRNA using tRNA to make proteins
30. tRNA(translation) brings amino acids to the ribosome, anticodon matches with codon on mRNA, peptide bond forms
33. Where in the cell does transcription take place?
nucleus
There are three steps in translation, the second step of protein synthesis.
Draw/describe each below the number.
34.35.36.
37. Where in the cell does translation take place?
Cytoplasm using ribosomes(could also say ER)
Here is a DNA strand: T A C G T C A T A C G C A T A
38. The matching DNA strand is:A T G C A G T A T G C G T A T
39. The matching RNA strand is: A U G C A G U A U G C G U A U
40. The amino acids would be:
(use ½ sheet provided)met - glu - tyr - ala - tyr
Here is a list of point mutations. Describe each:
41. Substitution: one letter put in in place of another
42. Insertion: new letter put in, (new letter added)
43. Deletion: one letter left out
Here is a list of chromosomal mutations. Describe each:
44. Deletion: one or more genes left out
45. Duplication: extra copies ofone or more genes
46. Inversion: gene put in backwards, or order switched
47. Translocation:one or more genes moved for one chromosome to another
48. Nondisjunction: homologs don’t separate correctly during anaphase I