Chargaff Study guides, Class notes & Summaries

What characteristic is not necessary for a molecule that is the genetic material? A. It must contain complex information B. It must be variable C. It must perform the action associated with the phenotype D. It must have the ability to replicate faithfully E. It must encode the phenotype - ANSWER- C A key discovery leading to the structure of DNA was done by Chargaff. He found that ____________ (2) A. The amount of A equals the amount of T, and the amount of G equals the amount of C B. ...

What cellular events occur in the G1 phase of the cell division cycle? - normal growth and cell function What is the best way to describe homologous chromosomes? - 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? - Darwin's theory of natural sel...

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...

TEST FOR (Portage Learning) BIOD 210 Module 6 Exam Genetics 2024 Most common nucleic acids - CORRECT ANSWER-Deoxyribonucleic acid (DNA) Ribonucleic acid (RNA) Nucleic acid monomers - CORRECT ANSWER-nucleotides DNA function - CORRECT ANSWER-stores genetic info encoding primary sequence of proteins RNA function - CORRECT ANSWER-makes proteins from info in DNA Nucleotide structure - CORRECT ANSWER-base + monosaccharide + phosphoric acid (H3PO4) Site of phosphoric acid bonding to sugar ...

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...

DNA and RNA Practice Quiz 23 Questions with Verified Answers All of the following are true about the structure of DNA except a. short strands of DNA are contained in chromosomes inside the nucleus of a cell b. every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base c. DNA consists of two strands of nucleotides joined by hydrogen bonds d. the long strands of nucleotides are twisted into a double helix - CORRECT ANSWER A Molecules of DNA are composed of long chains ...

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...

BHCS1002 2023 Exam with Complete Solutions Questions Chargaff's Rule for DNA - ANSWER %A=T and %C=G What is chromatin made of? How does it allow packaging of DNA into the nucleus of eukaryotic cells? - ANSWER Chromatin= protein + DNA positive charge to facilitate binding to DNA Chromosome are highly organised, tightly packed Core histones form a nucleosome with DNA Linker histones more variable Enzymes involved in DNA replication - ANSWER DNA helicase and DNA polymer...

Two sources of variability that arises during meiosis and fertilizations - 1. Crossing over 2. Independent Assortment Crossing Over - homologous chromosomes pair... each sister chromatid consists of a single stranded DNA molecule What is the result of the crossing over between homologous chromatids? - The exchange of segments Where do the homologous chromosomes separate? - First meiotic division What is produced after meiosis II - two daughter chromosomes have parental combinations of al...

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...