Download BIOD 102 Biology II Module 1 Exam Portage Learning Questions and Answers 2024/25 (Verified and more Exams Biology in PDF only on Docsity!
Correct! (^) Fals e Tru e True or False. Replication of DNA begins at a single origin of replication and then proceeds the entire length of the strand, in one direction.
Question 1 2 /^2 pts
Match each term with the correct definition. Correct! (^) origin of replication
Question 2 6 /^6 pts
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BIOD 102 Biology II Module 1 Exam Portage Learning Questions and
Answers 2024/25 (Verified Answers)
Due No due date Points 100 Questions 40 Time Limit 120
Minutes Requires Respondus LockDown Browser
Attempt History
Attempt Time Score KEPT Attempt 2 83 minutes^ 87.5 out of 100 LATEST Attempt 2 83 minutes 87.5 out of 100 Attempt 1 60 minutes 65 out of 100
Score for this quiz: 87.5 out of 100
Submitted Jul 15 at 10:59am This attempt took 83 minutes.
Correct! (^) helicase Correct! (^) replication fork Correct! (^) replication bubble Correct! (^) single stranded binding protein Correct! (^) topoisomerase enzyme^ that^ breaks^ hydr functions as a wedge to k visible region, ahead of t visible, ‘Y’-shaped area; p enzyme that untwists DN Topoisomerase Your Answer: helicase What enzyme is responsible for relieving the stress associated with the twisting and untwisting of a DNA strand during replication? Question 3 0 /^2 pts Multiple Choice: Question 4 2 /^2 pts
Correct! (^) b c one more than one/many/several Your Answer: 1 more than 1 (Fill in the blank) The leading strand requires1RNA primer(s), and the lagging strand requires2RNA primer(s). Question 7 2 /^2 pts Multiple Choice: replaces RNA nucleotides with DNA nucleotides in a newly synthesized strand. DNA ligase orrect Answer (^) DNA polymerase Question 8 0 /^3 pts
ou Answered (^) RNA primase Correct! False True True or False. Mismatch repair is the process of identifying nucleotides that are inappropriately matched, such as a guanine with a thymine, and removes t Question 10 3 /^3 pts Question (^9 2) / 2 pts (short answer) A class of DNA polymerase patrols newly added nucleotides and will remove nucleotides that are erroneous. How does the polymerase “know” a nucleotide is misplaced? Your Answer: DNA replication involved incorporation of incoming nucleotides at the 3' hydroxy end of the growing chain. DNA replication is carried out by DNA polymerase enzyme and has the ability to proofread the incorporated nucleotides. If incorporation is incorrect the nucleotide will result in slow replication fork which is a signal to initiate DNA repair. which removes incorrect nucleotoides. Newly added nucleotides are compared to the complementary template strand.
(short answer) The lagging strand gets shorter with each replication. Why can’t DNA polymerase simply tack on the necessary nucleotides? Your Answer: Question 13 1.5^ /^3 pts
The DNA polymerase on lagging strand requires primers. Primase enzyme needs space on DNA for forimg prmers at the end. Because the lagging strand is synthesized in the 5’à3’ end so the RNA primer is rem previous nucleotide. At which end specifically? Correct! (^) False True True or False. Telomeres contain a large proportion of vital coding DNA. Question 14 2 /^2 pts Multiple Choice: What cells of the body are shielded from telomere shortening? orrect Answer (^) germ cells ou Answered (^) somatic cells neurons Question 15 0 /^2 pts
Correct Answer (^) sequence of genetic information Correct! (^) phenotype Correct! (^) transcription Correct! (^) translation process^ of^ interpreting^ m process of synthesizing R observable characteristi The process of synthesizing mRNA from a DNA template; first step of protein synthesis Your Answer: Information on the strand of the DNA is copied into a new moleculr of messenger RN (short answer) Define what the process of transcription is. Question 18 2 /^2 pts Multiple Choice: bases encode fordifferent amino acids. Question 19 2 /^2 pts
Correct! (^) 4; 5; 4; 3; Correct! proteins amino acids mRNA DNA Multiple Choice: is read in a triple code reading frame. Question 20 3 /^3 pts Match each term with the correct definition: Correct! (^) Promoter region Correct! (^) TATA box Question 21 5 /^5 pts DNA sequence of eukary A control sequence that
Correct! Correct! Correct! (^) splicing translation poly-A tail 5’ cap pre-mRNA may undergo the following modifications (select all that apply): Question 24 3 /^3 pts They are like cargo trucks; they are responsible for transferring amino acids from cyt acid chain. Your Answer: they transfer amino acids from cytosol to the growing amino acid chain (short answer) Describe the role of tRNA in the cell. Question 25 2 /^2 pts Match each term with the correct definition. Question 26 4 /^4 pts
Correct! (^) intron Correct! (^) exon Correct! (^) splicing Correct! (^) spliceosome small^ RNA^ complexes^ an removal of segments of R coding regions of mRNA non-coding regions of m Correct! rRNA tRNA mRNA Multiple Choice: Which RNA molecules are responsible for transferring amino acids during translation Question 27 2 /^2 pts Match each term with the correct definition. Correct! (^) E-site Question 28 2 /^2 pts permits passage of tRNA
Correct! (^) C-terminus end Correct! none of the above carbon dioxide water amino acid Multiple Choice: After a stop codon is encountered, the hydrolysis of what molecule aids in releasing Question 31 2 /^2 pts unique folding/appropriate structure shape Your Answer: final proteins functional diversity Fill in the blank. Post-translational modifications are necessary to ensure . Question 32 0 /^2 pts
Correct! False True True or False. Some mutations, such as point and substitution types, can occur without changing an organism’s phenotype. Question 34 2 /^2 pts Coorrrectct! Coorrrectct! Coorrrectct! Coorrrectct! Question 33 4 /^4 pts Match the term to the correct definition: control elements (^) non-coding DNA regions proximal control elements (^) located most closely to t distal control elements (^) located farther away fro general transcription (^) associated with low level factors
True Correct! (^) False Correct! none of the above histone tail polypeptide chain mRNA Multiple Choice: Acetylation and methylation occur at the following site: Question 36 2 /^2 pts Correct! recessive inheritance dominant inheritance epigenetic inheritance Multiple Choice: Modifications, such as methylation and acetylation, that are genetically inherited ar Question 37 2 /^2 pts
Correct! (^) False True True or False. Different cells in the body have different DNA, and this is why activators and repressors have different effects by cell type. Question 38 2 /^2 pts Question (^39 2) / 2 pts Short Answer: How does alternative splicing differ from intron splicing? Your Answer: Alternative Splicing: Splicing then rejoining different regions of same primary transcript. Intron Splicing: Remove the non-coding region Alternative splicing involves the splicing and rejoining of different regions of the same primary transcript. Each spliced region can be translated into a different protein. Conversely, intron splicing is simply the removal of non-coding regions after transcription intron splicing doesn’t give more than one mRNA to be translated.
