Slide 1 / 46 Slide 2 / 46 New Jersey Center for Teaching and Learning Progressive Science Initiative This material is made freely available at www.njctl.org and is intended for the non-commercial use of students and teachers. These materials may not be Genes used for any commercial purpose without the written permission of the owners. NJCTL maintains its website for the convenience of teachers who wish to make their work available to other teachers, Multiple Choice participate in a virtual professional learning community, and/or provide access to course Review materials to parents, students and others. Click to go to website: www.njctl.org www.njctl.org Slide 3 / 46 Slide 3 (Answer) / 46 1 Deoxyribonucleic acid nucleotides are composed of 1 Deoxyribonucleic acid nucleotides are composed of A Ribose sugar, a phosphate group and one of A Ribose sugar, a phosphate group and one of four bases (adenine, cytosine, thymine and four bases (adenine, cytosine, thymine and guanine) guanine) Answer D B Ribose sugar, a phosphate group and one of B Ribose sugar, a phosphate group and one of four bases (uracil, cytosine, thymine and four bases (uracil, cytosine, thymine and guanine) guanine) C Deoxyribose sugar, a phosphate group and one C Deoxyribose sugar, a phosphate group and one of four bases (uracil, cytosine, thymine and of four bases (uracil, cytosine, thymine and [This object is a pull tab] guanine) guanine) D Deoxyribose sugar, a phosphate group and one D Deoxyribose sugar, a phosphate group and one of four bases (adenine, cytosine, thymine and of four bases (adenine, cytosine, thymine and guanine) guanine) Slide 4 / 46 Slide 4 (Answer) / 46 2 When the bases pair up to connect one strand of 2 When the bases pair up to connect one strand of DNA to a mirror image strand of DNA, why do the DNA to a mirror image strand of DNA, why do the bases pair up in specific pairs? bases pair up in specific pairs? Answer A A purine must pair with a pyrimidine because of A A purine must pair with a pyrimidine because of A the number of hydrogen bonds between them the number of hydrogen bonds between them B A purine must pair with a purine because of the B A purine must pair with a purine because of the number of hydrogen bonds between them . number of hydrogen bonds between them . [This object is a pull tab] C A purine must pair with a pyrimidine because of C A purine must pair with a pyrimidine because of the number of carbon bonds between them the number of carbon bonds between them D A purine must pair with a purine because of the D A purine must pair with a purine because of the number of carbon bonds between them . number of carbon bonds between them .
Slide 5 / 46 Slide 5 (Answer) / 46 3 If the function of DNA is to contain the code of the 3 If the function of DNA is to contain the code of the genetic information for the cell, where do we find this genetic information for the cell, where do we find this code? code? A The code is the sequence of phosphate groups . A The code is the sequence of phosphate groups . B The code is the sequence of bases combined B The code is the sequence of bases combined Answer C from both strands of DNA from both strands of DNA C The code is the sequence of bases on one C The code is the sequence of bases on one strand of the DNA . strand of the DNA . [This object is a pull tab] D The code is the sequence of sugars found in the D The code is the sequence of sugars found in the protected backbone of DNA . protected backbone of DNA . Slide 6 / 46 Slide 6 (Answer) / 46 4 If one strand of DNA is C-C-T-A-G-G-A-T 4 If one strand of DNA is C-C-T-A-G-G-A-T what is the base sequence of the complimentary what is the base sequence of the complimentary strand of DNA? strand of DNA? Answer A G-G-U-T-C-C-T-U A G-G-U-T-C-C-T-U B B G-G-A-T-C-C-T-A B G-G-A-T-C-C-T-A C G-G-A-U-C-C-U-A C G-G-A-U-C-C-U-A [This object is a pull tab] D T-T-A-T-C-C-T-A D T-T-A-T-C-C-T-A Slide 7 / 46 Slide 7 (Answer) / 46 5 What is meant by the statement, the two strands of 5 What is meant by the statement, the two strands of DNA are anti-parallel to each other? DNA are anti-parallel to each other? A Each strand of a DNA molecule has its own A Each strand of a DNA molecule has its own genetic code genetic code Answer B The strands are not parallel to each other they B The strands are not parallel to each other they C are perpendicular . are perpendicular . C There is a direction to each strand of DNA and C There is a direction to each strand of DNA and they run opposite to each other . they run opposite to each other . [This object is a pull tab] D The strands of DNA may be split apart and D The strands of DNA may be split apart and flipped in order to produce RNA . flipped in order to produce RNA .
Slide 8 / 46 Slide 8 (Answer) / 46 6 What is the template strand of a DNA molecule? 6 What is the template strand of a DNA molecule? A This is the new strand of DNA, produced from A This is the new strand of DNA, produced from the older strand . the older strand . B This is the parent strand from which the new B This is the parent strand from which the new Answer strand is produced . strand is produced . B C This is the parent strand, which is protected C This is the parent strand, which is protected and never used . and never used . D This is the strand that will leave the nucleus and D This is the strand that will leave the nucleus and [This object is a pull tab] take the genetic message to the rest of the cell . take the genetic message to the rest of the cell . Slide 9 / 46 Slide 10 / 46 7 One end of the DNA strand is labeled "a" . The illustration below shows a section of a single strand of a DNA molecule. Using this illustration, answer questions 7 and 8. Which end of the DNA strand is this? a. A this is the 3'end of the strand . B this is the 5' end of the strand C we cannot determine because we need the complementary strand D this is the promoter end b. http://faculty.rhodes.edu/lindquester/molbiol/dnastructure.html Slide 10 (Answer) / 46 Slide 11 / 46 7 One end of the DNA strand is labeled "a" . 8 Another nucleotide is to be added to this strand . To which end of the DNA molecule will this nucleotide Which end of the DNA strand is this? be added? A this is the 3'end of the strand . A to the end of the "a" strand Answer B B this is the 5' end of the strand B to the base at the top C we cannot determine because we need the C to the "b" end complementary strand [This object is a pull tab] D not enough information D this is the promoter end
Slide 11 (Answer) / 46 Slide 12 / 46 8 Another nucleotide is to be added to this strand . To 9 There is an enzyme that catalyzes the reaction, which end of the DNA molecule will this nucleotide adding a nucleotide to a growing strand of DNA . be added? Which enzyme is this? A to the end of the "a" strand A DNA helicase Answer C B RNA helicase B to the base at the top C RNA polymerase C to the "b" end D DNA polymerase D not enough information [This object is a pull tab] Slide 12 (Answer) / 46 Slide 13 / 46 9 There is an enzyme that catalyzes the reaction, 10 DNA replicates in a way that is called "semi- adding a nucleotide to a growing strand of DNA . conservative" . Why is this replication considered Which enzyme is this? "semi-conservative." A Each copy contains one strand from the original A DNA helicase DNA molecule . Answer D B RNA helicase B During replication, RNA is produced that conserves the code . C RNA polymerase C The one new DNA strand is entirely new and the D DNA polymerase parent strand is entirely the original . [This object is a pull tab] D The method of replication uses enzymes therefore it is conserving energy . Slide 13 (Answer) / 46 Slide 14 / 46 10 DNA replicates in a way that is called "semi- 11 Once the RNA is produced, what is its function? conservative" . Why is this replication considered "semi-conservative." A to bring sugar for metabolism out of the nucleus A Each copy contains one strand from the original DNA molecule . B to bring the genetic code to be released from Answer B During replication, RNA is produced that A the cell conserves the code . C to bring the genetic code out of the nucleus C The one new DNA strand is entirely new and the D to bring the bases to the mitochondria parent strand is entirely the original . [This object is a pull tab] D The method of replication uses enzymes therefore it is conserving energy .
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