Frederick griffith - Study guides, Class notes & Summaries

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...

BIO 111 TAMU Fletcher Exam 3 Questions And Answers 100% Solved | Graded A+ Friedrich Miescher - discovered DNA in 1869 But did not know (Isolated phosphate) rich acidic compounds Frederick Griffith - Discovered transformation during an experiment that involved injecting mice with smooth S cells, rough R cells, heat-killed S cells, and heat-killed S cells with living R cells. Avery, MacLeod, McCarty - Identified the heritable substance as DNA Used test tubes- vitro Hershey and Chase - per...

frederick griffith - Answers studied streptococcus pneumoniae in mice - hypothesized that bacteria could "transfer" information to each other - S strain -> host death - R strain -> not fatal - pre-killing S strains prevents illness - killed S plus live R is fatal conjugation - Answers horizontal gene transfer requiring cell to cell contact - two cells brought together by pilus on the donor - relaxase assists in DNA transfer - requires presence of transferable plasmids -> co...

RNA nucleotide base pairings - Cytosine (C) pairs to Guanine (G) Adenine (A) pairs to Uracil (U) DNA Sructure - because of this complementary base pairing, the order of the bases in one strand determines the order of the bases in the other strand Griffith's Experiment - in the 1920's, Frederick Griffith worked with two strains of Streptococcus pneumoniae bacteria. It was discovered that DNA was transmitted between the toxic and the harmless bacteria. DNA - -deoxyribonucleic acid -store...

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 bet...

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...

Biology 1320 Exam 3 Bergh Study Guide with Complete Solutions DNA - Answer️️ --deoxyribonucleic acid -stores the information that the cell needs to produce proteins transciption - Answer️️ -the gene's sequence is copied from DNA to a middleman molecule called mRNA translation - Answer️️ -the gene's sequence is now encoded in mRNA, which directs the production of a protein Griffith's Experiment - Answer️️ -in the 1920's, Frederick Griffith worked with two strains of S...

Gregor Mendel - Austrian Monk, developed fundamental laws of heredity using peas True-breeding - Means the offspring are like the parents, not hybrids Homozygous - Means the alleles/traits are identical, either both dominant or both recessive Cystic Fibrosis - Affects Caucasians in US, salty sweat, mucus in bronchial tubes and pancreatic ducts, failure of chloride ions to pass through the membrane, on chromosome 7, life expectancy is 35 years Genotype - Is the alleles received at birth, re...

Gregor Mendel (1865-1866) - ANSWER- Using pea plants he observed what he called the Laws of Heredity: 1. Law of Segregation - there is one gene per sex cell, so we have to genes, one from each parent. 2. Law of Independent Assortment - traits are inherited independently, found to be untrue for all (linkage). 3. Law of Dominance - there are recessive and dominant traits, not all of them. Thomas Morgan (1910) - ANSWER- Chromosome Theory of Inheritance: 1. Sex chromosomes 2. Chromosome pair...

The drug AZT was one of the first drugs used to treat HIV. Which of the following drug actions would prevent the spread of HIV without harming the host cell? prevention of the formation of glycoproteins inhibition of reverse transcriptase inhibition of DNA polymerase destruction of amino acids that are vital to viral protein synthesis - correct answer inhibition of reverse transcriptase A virus infects a cell and randomly inserts many ...