Promoter and terminator - Study guides, Class notes & Summaries

BIO Practice from Practice Exam 2|112 Questions with Verified Answers Complementary base-pairing allows for A) genes to be expressed as phenotype. B) spontaneous mutations to occur. C) covalent bonds to form between the opposite bases. D) replication to be semiconservative. E) DNA to serve as its own template for replication. - CORRECT ANSWER E) DNA to serve as its own template for replication. 6) The process by which genetic information is transferred from DNA to RNA is called ...

Describe the process of transcription. What are the starting molecules and the end products? - ️️Transcription is the manufacture of a strand of RNA complementary to a strand of DNA. In initiation, RNA polymerase binds to a promoter region on the DNA strand. RNA synthesis occurs during the elongation phase as RNA nucleotides are added to the growing RNA polynucleotide. When the RNA polymerase reaches the terminator region of the gene, elongation stops and the polymerase and new RNA molecule ...

Explain the concepts of penetrance and expressivity Penetrance is the percentage of cases in which a certain phenotype is expressed. There are two types: i. Complete Penetrance: when 100% is correlated to the genotype. So, all express the same thing. ii. Incomplete: this is when some are identical, and others are different. Penetrance= # with genotype showing phenotype x 100 # with the genotype Expressivity is the type or degree to which a penetrant gene ( the genes carrying the mutatio...

Genomics Midterm Exam Questions With Complete Solutions. DNA is a polymer composed of all of the following EXCEPT: a. nitrogenous base b. 5-carbon sugar c. codon d. phosphate group c codon = 3 nucleotide sequence Which of the nitrogen-containing bases are purines? a. adenine b. cytosine c. thymine d. guanine a, d cytosine and thymine are pyrimidines In a DNA sequence, adenine nitrogen base pairs with _________, while guanine pairs with _________. a. uracil, thymine b. th...

RNAS Practice Quiz 4.3 |20 Questions with Verified Answers During transcription, RNA polymerase joins nucleotides from 5′ to 3′. from left to right. from 3′ to 5′. from right to left. - CORRECT ANSWER from 5' to 3' In bacteria, RNA polymerase transcribes tRNA genes only. protein-coding genes only. rRNA genes and tRNA genes. all types of genes. - CORRECT ANSWER all types of genes In translation, DNA is converted to RNA. DNA is copied i...

GCD Exam 2 Practice Test Comp 86 Questions (chp 9-13) with Verified Answers Which of the following could be the components of a single nucleotide found in DNA? a. Ribose, phosphate, and cytosine b. Deoxyribose, phosphate, and uracil c. Deoxyribose, phosphate, and adenine d. Ribose, phosphate, and uracil - CORRECT ANSWER c. Deoxyribose, phosphate, and adenine 2. Which of the following is NOT a feature of the DNA double helix? a. It obeys the AG/TC rule. b. There are 10 nucleotides...

Microbiology Chapter 8 Exam Questions with 100% Correct Answers | Verified | Updated What characteristic of DNA allows two connected DNA polymerases to synthesize both the leading and lagging strands? DNA has a helical shape. DNA is double-stranded. DNA is antiparallel. DNA is flexible. - answerDNA is flexible. What is the function of the connector proteins? They enable one parental DNA strand and one newly synthesized DNA strand to be held together. They allow DNA synthesis to occur...

Biochemistry C785 PRE-ASSESSMENT Questions with Answers Latest 2023 Studies have shown that increased expression of two genes called SIRT1 and SIRT2 is associated with chronic exposure to cocaine and contributes to drug addiction. What difference in the regions of the SIRT1 and SIRT2 genes in people addicted to cocaine increases their expression? The DNA bases are chemically modiked with methyl groups. Transcription factors have less access to the promoter region. RNA polymerase...

DNA characteristics - double stranded complementary base pairing A=T and G=C more stable than RNA H similarities between mRNA and DNA - nucleic acids polarity mRNA characteristics - single stranded OH instead of T-->U which way is mRNA synthesized? - 3'-> 5' which way is mRNA read? - 3'->5' which was is mRNA polymerized? - 3'-> 5' which was is mRNA transcribed? - 3'-> 5' which way is mRNA made? - 5'-->3' what is required for prokaryotic transcription? - ...

ASCP MB: Extra-Practice Questions and Answers Scored A The Klenow fragment of E. coli DNA polymerase I is used: - Answer ️️ -to label DNA probes by random primer labeling. What is a solution hybridization method for the detection of nucleic acid:protein interactions? - Answer ️️ -gel mobility shift assay _____ involves mixing a labeled oligonucleotide with a protein extract to see if a specific interaction occurs, visible with an apparent increase in molecular size on a gel due to...