Semiconservative dna - Study guides, Class notes & Summaries

DNA replication involves... the separation of the two strands of the double helix at a replication fork DNA strands are used as... templates to direct the synthesis of new strands during replication DNA replication is___ semiconservative Semiconservative... means that each daughter DNA molecule consists of: a newly synthesized strand and a strand that was present in the parental DNA molecule. Nucleotides are added to the ___ end of the growing strand 3' Synthesis proceeds in a ___ directio...

DNA replication is a. conservative b. semiconservative c. bidirectional d. liberal e. proliferative - ️️B DNA polymerase can synthesise DNA a. de novo by catalysing the polymerisation of free dNTPs b. by adding dNTPs to complementary dNTPs on a single stranded DNA c. by adding dNTPs to a hydroxyl group on the end of a growing polynucleotide chain hydrogen bonded to a strands of RNA d. by adding dNTPs to a hydroxyl group on the end of a growing polynucleotide chain hydrogen bonded...

Biology Midterm 2 Exam Questions With Verified Answers Which of the following shows the correct base pairing of deoxyribonucleotides that occurs in nature? Select one: a. A with T b. A with U c. A with C d. A with G - answerG pairs with C A pairs with T U is found in RNA, not DNA The correct answer is: A with T According to the "semi-conservative" model of DNA replication, after a double-stranded DNA molecule is replicated Select one: a. each DNA strand of each of the two result...

BACE Review Questions and Answers 2024 Structural component of cell membrane, Ex: Phospholipid Lipid A chemical bond that involves the sharing of electron pairs between atoms. What is the most likely reason there is an unexpected band in a PCR reaction? Using too low temp. What should be included on the gel to enable you to determine actual sizes of the DNA fragments? Molecular weight marker and DNA Ladder What is MRNA? What the order of amino acids on a polypept...

produces a functional RNA, which usually encodes a protein structural gene regulates the expression of a structural gene. - Does not encode an RNA or protein - Includes promoters & binding sites for regulatory proteins regulatory sequence most have one circular chromosome bacteria and archaea are larger than those of bacteria, in a nucleus, and linear, which requires telomerases to finish replication of the last part of the lagging strand eukaryotic genomes More DNA = trade-off between cost ...

MMSC490 Exam 1 Questions and Answers 2024 The simplicity and clarity of Caenorhabditis elegans allowed researchers to - Answer- Identify the genes in differentiation of each cell type The diffraction limited resolving power of a standard light microscope is approximately - Answer-0.2 Om Chloroplasts are thought to have originated from endosymbiosis of ___ by large host cell. - Answer-Photosynthetic eubacteria such as cyanobacteria The eukaryotic nucleus contains ___ DNA molecule (s). - An...

DNA Replication Written Exam . DNA replication steps 1) Helicase- unwinds the parental double helix 2) DNA topoisomerase - upstream of helices alleviating torsional strain 3) Single-strand binding proteins (SSBP) stabilize unwound DNA, aided by DNA gyrase (topoisomerase). 4) Primase synthesizes a short RNA primer for DNA polymerase to bind to in the 5' to 3' direction to start replication on each strand. 5) DNA polymerase synthesizes the leading strand in 5' to 3' direction...

DNA replication is semiconservative, which allows each of the 2 strands to serve as a template for the new strands Correct Answer- true Recall that the DNA polymerase must bind a double-stranded polymer before it can start making its own DNA polymer. What helps the DNA polymerase to overcome this problem in DNA replication? Correct Answer- RNA primers Several components of cigarette smoke, including benzopyrene, insert themselves into the DNA and lead to several types of mutations such as...

Module 2 Exam Practice 113 Questions with Verified Answers What does RNA Pol I transcribe? - CORRECT ANSWER rRNA What does RNA Pol II transcribe? - CORRECT ANSWER mRNA snRNA What does RNA Pol III transcribe? - CORRECT ANSWER tRNA rRNA snRNA What is wrong with this definition of a gene? "A gene consists of DNA sequences that encode a single polypeptide" - CORRECT ANSWER 1. Not all genes are DNA sequences (RNA viruses) 2. Not all RNA molecules encode for a single polypeptide L...

BIO110 PRACTICE EXAM 4|165 Questions with Verified Answers TRNA has a few loops in its structure, what loops connects to the mRNA codon? a. codon domain b. anticodon c. acodon d. amino acid - CORRECT ANSWER b. anticodon Catabolite activator protein: a. increases the affinity of the promoter region for RNA polymerase b. decreases RNA polymerase activity c. becomes nonfunctional when it binds to AMP d. binds and activates RNA polymerase e. blocks RNA polymerase access to the DNA tem...