Erwin chargaff - Study guides, Class notes & Summaries

A - Alanine (1 letter) Activation of enzymes through ligand binding: why would this be useful? - The binding of a ligand to an allosteric site of a multimeric enzyme often induces positive cooperativity, that is the binding of one substrate induces a favorable conformation change and increases the enzyme's likelihood to bind to a second substrate. Ala - Alanine (3 letter) Arg - Arginine (3 letter) Asn - Asparagine (3 letter) Asp - Aspartic Acid (3 letter) Barr body and relation to heter...

UNT Biology 1710 Practice Exam 3|52 Questions with Verified Answers An excellent example of the genetic phenomenon known as continuous variation would be: a. flower color in plants. b. height in humans. c. human blood groups. d. epistasis. e. fur color in arctic animals - CORRECT ANSWER B) height in humans A human genetic trait passed from one generation to the next has an unusual inheritance pattern. The genotype and phenotype of the offspring depends only upon the genotype of the mo...

Heat can be used to separate two strands of double-stranded DNA, with the least amount of heat necessary to separate strands with the fewest and weakest bonds holding them together. Consider the following double-stranded DNA sequences that each consist of 10 bp. Which sequence will likely require the least amount of heat for separation? (A) CGTGCCATTG GCACGGTAAC (B) GCCTCTAGGC CGGAGATCCG (C) AATGCTTATA TTACGAATAT (D) GCTATACTAG CGATATGATC - ANSWER (C) AATGCTTATA ...

UAMS Molecular Diagnostics Exam 1 Questions & Answers 2024/2025 Which of the following is NOT an application of molecular diagnostic testing? Cloning humans Identifying bacterial pathogens Detecting genetic disorders Paternity Testing - ANSWERSCloning humans Who is considered the "father of modern genetics"? Erwin Chargaff Frederick Griffith Friedrich Miescher Gregor Mendel - ANSWERSGregor Mendel He isolated nuclein. Frederick Griffith Friedrich Miescher Gregor Mend...

In 1928, __________ was surprised to find that when he killed pathogenic bacteria, then mixed the bacterial remains with living harmless bacteria, some living bacterial cells became pathogenic. Frederick Griffith In 1952, ___________ used bacteriophages to show that DNA is the genetic material of T2, a virus that infects the bacterium Escherichia coli (E. coli). Hershey-Chase __________ are viruses that infect bacterial cells. Bacteriophages ______ discovered the relationships between D...

In 1928, __________ was surprised to find that when he killed pathogenic bacteria, then mixed the bacterial remains with living harmless bacteria, some living bacterial cells became pathogenic. Frederick Griffith In 1952, ___________ used bacteriophages to show that DNA is the genetic material of T2, a virus that infects the bacterium Escherichia coli (E. coli). Hershey-Chase __________ are viruses that infect bacterial cells. Bacteriophages ______ discovered the relationships between D...

What cellular events occur in the G1 phase of the cell division cycle? - ANSWER normal growth and cell function What is the best way to describe homologous chromosomes? - ANSWER they carry information for the same traits In some parts of Africa, the frequency of individuals who are heterozygous for the sickle-cell anemia allele is higher than the frequency in North America, presumably because this reduces the frequency of malaria. Such a relationship is related to what? - ANSWER Darwin's ...

Rosalind Franklin and Maurice Wilkins - ️️DNA is a multiple-stranded fiber of 20 A thickness. Groups spaced 3.4 A along the fiber and a repeating unit every 34 A. Purines - ️️Two fused heterocyclic rings A, G Pyrimidines - ️️One single heterocyclic ring T, U, C Nucleotide Sugars - ️️Ribose Deoxyribose (Base is always attached to C-1' of the sugar. Phosphates - ️️Can be attached to the C-5' of the sugar. Deoxyribonucleo-side - ️️Base + Sugar Deoxyribonucleo...

Biology 203: Final Exam Review 151 Questions with Correct Answers What cellular events occur in the G1 phase of the cell division cycle? - Correct Answers normal growth and cell function What is the best way to describe homologous chromosomes? - Correct Answers they carry information for the same traits In some parts of Africa, the frequency of individuals who are heterozygous for the sickle-cell anemia allele is higher than the frequency in North America, presumably because this reduces ...

Are mutations in exons or introns more likely to result in an altered protein? - Exons Are mutations permanent or temporary changes in the DNA sequence? - Permanent changes in the DNA Avery - genes are composed of DNA , DNA (not proteins) can transform the properties of cells deletion mutation - a mutation in which one or more pairs of nucleotides are removed from a gene Does crossing over occur in mitosis? - No, only in meiosis Does meiosis result in diploid or haploid cells? - haploid ...