Erwin chargaff Study guides, Class notes & Summaries

PORTAGE LEARNING CHEM 210 - MODULE 6 EXAM. In RNA, guanine always pairs with . Thymine Guanine Cytosine Uracil Both A and B CYSTOSINE DNA is built from which of the following? Nucleosides Genes Purines Nucleotide Codons NUCLEOTIDE The Z-form helix of DNA is stabilized mainly by . Ionic bonds Covalent bonds Hydrogen bonds Ion-dipole bonds Hydrogen covalent bonds HYDROGEN BONDS Question 1 3 / 3 pts Question 2 3 / 3 pts Question 3 3 / 3 pts Question 4 3 / 3 pts Questi...

Biology Practice Test 4|50 Questions with Verified Answers 1) Which of the following is the best modern definition of evolution? A) descent with modification B) change in the number of genes in a population over time C) survival of the fittest D) inheritance of acquired characters - CORRECT ANSWER A 2) Which statement about the beak size of finches on the island of Daphne Major during prolonged drought is true? A) Each bird evolved a deeper, stronger beak as the drought persisted. B)...

Which are segments of DNA that code for specific traits? A. genes B. chromosomes C. proteins D. codons - ANSWER A. genes If the same base pairs are used to code for all organisms, why is there so much variation among organisms? A. The order of the codons differs between organisms. B. The order of the codons is the same between organisms. C. The codons in each organism are the same. D. The codons in each organism differ. - ANSWER A. The order of the codons differs between organisms. `...

Biochem Module 6 Questions and Answers 100% Pass In DNA, adenine always pairs with ________. - Thymine - Guanine - Uracil - Cytosine - Thymine DNA is built from which of the following? - Nucleosides - Genes - Purines - Nucleotide - Codons - Nucleotide The double helix of DNA is stabilized mainly by __________. - Ionic bonds - Covalent bonds - Ion-dipole bonds - Hydrogen bonds - Hydrogen covalent bonds - Hydrogen bonds Which of the following pentose sugars is a constituent of DNA? ...

People to Know - AP Biology Exam Questions and Answers Gregor Mendel Monk who grew up in Austria, experimented with garden peas in 1857 to study inheritance, documented "particulate mechanism", came up with laws of independent assortment and segregation. Thomas Hunt Morgan Came up with first solid evidence associating a specific gene with a specific chromosome by working with various varieties of Drosophila; invented notation for symbolizing alleles; discovered sex-linked trait of whit...

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...

Barr Body - ANSWER-the condensed inactive form of an X chromosome most common in woman cM - ANSWER-The map length used in linkage maps, or a 1% recombination frequency Law of Independent Assortment - ANSWER-Alleles sort independently of each other during meiosis Klinefelter syndrome - ANSWER-A chromosomal disorder in which males have an extra X chromosome, making them XXY instead of XY. Down Syndrome - ANSWER-trisomy 21; 3 copies of chromosome 21 Nondisjunction - ANSWER-Homologous...

University of Mississippi - Dr. Jones - BISC 440 Test 1, questions with verified answers Plasma Membrane The selective barrier composed of lipid bilayer and embedded proteins that surrounds a living cell (CH.1) Enzyme A protein that catalyzes a specific chemical reaction (CH.1) Transcription Copying of one strand of DNA into a complimentary RNA sequence by the enzyme RNA polymerase (CH.1) Translation Process by which the sequence of nucleotides in an mRNA molecule direc...

Biology 330: Exam 2 (DNA Structure & Replication) questions and answers well illustrated. What two elements were identified in an acidic compound that was isolated from the nucleus by Johann Miescher? - correct answers.Nitrogen & Phosphorus Why proteins were thought to encode information that pertains to inheritable traits? - correct answers.1. Inheritable traits are diverse, and therefore molecules that encode these traits must be diverse 2. Proteins are made of 2...

Portage Learning CHEM 210 exams 1-8 and final exam Question 1 3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. True Correct! False Question 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True Correct! False Question 3 3 / 3 pts True or False: The following functional group is an alcohol. True Correct! False Question 4 3 / 3 pts True or False: In ...