Drosophila melanogaster - Study guides, Class notes & Summaries

MMSC 490 Practice Quizzes Modules 1-4 with complete solutions The feature that most clearly distinguishes eukaryotes from prokaryotes is the presence of .......... in eukaryotic cells. RNA molecules a nucleus oxidative phosphorylation ribosomes - Answer ️️ -Nucleus Cytoplasmic organelles are absent in both prokaryotic and eukaryotic cells. present in prokaryotic cells and absent in eukaryotic cells. absent in prokaryotic cells and present in eukaryotic cells. present in both prok...

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

MMSC 490 practice quiz 1- Correctly Solved At the time life arose on Earth, Earth's atmosphere contained abundant amounts of all of the following except - Answer ️️ -O2 (H2, N2, and H2s were all present) RNA is believed to have been the initial genetic system because it can - Answer ️️ -catalyze the polymerization of nucleotides into another RNA strand. Mitochondria and chloroplasts resemble bacteria in that they - Answer ️️ -- have their own DNA - have their own ribosomes -...

Genetics final exam prep, (Answered) With Complete Verified Solutions 1. Place the steps of generating a gene - knockout mouse in order from the dis- ruption of the target gene to generat- ing homozygous knockouts. Suppose in 1. Disrupt target gene by insert- ing neo+ and link tk+ to disrupted gene 2. transfer disrupted gene into one experiment, the stem cells used are stem cells from a black mouse from a black coated mouse, and the earl3y. allow recombination with mouse embryo ...

Autosome—any chromosome not considered as a sex chromosome, or is not involved in sex determination (occurs in somatic cells) Bivalent—a pair of homologous chromosomes in synapsis during meiosis Drosophila melanogaster—a species of fruit fly used in genetics because of the large size of its chromosomes epistasis (gene x gene interaction)—interaction between nonallelic genes at two or more loci resulting in one gene masking the phenotypic expression of another gene x environment in...

Cell Theory - ANSWER-Discovered in the 17th century 1. All living things are composed of cells 2. The cell is the basic unit of life 3. The chemical reactions of life take place inside the cell 4. Cells arise from only preexisting cells 5. Cells carry genetic information in the form of DNA. This genetic material is passed from parent cell to daughter cell 6 Kingdoms - ANSWER-Bacteria, Archaea, Protista, Fungi, Plantae, and Animalia Prokaryotic - ANSWER-"before nucleus", lacks a memb...

Genetics final exam prep, (Answered) With Complete Verified Solutions 1. Place the steps of generating a gene - knockout mouse in order from the dis- ruption of the target gene to generat- ing homozygous knockouts. Suppose in 1. Disrupt target gene by insert- ing neo+ and link tk+ to disrupted gene 2. transfer disrupted gene into one experiment, the stem cells used are stem cells from a black mouse from a black coated mouse, and the earl3y. allow recombination with mouse embryo ...

The diffraction limited resolving power of a standard light microscope is approximately? correct answers 0.2 micro meter Studies on which model experimental organism led to the initial discovery of important mechanisms controlling the development of the animal body plan? correct answers Drosophila melanogaster Because the genetic code usually has more than one codon for each amino acid, the code is said to be correct answers degenerate Vectors for expressing a eukaryotic protein in a ba...

Three stages of embryonic development correct answersfertilisation, cleavage, bastula What are the three blastula layers correct answersectoderm, mesoderm, endoderm How are microtubules and microfilaments involed in cell development correct answersThey change shape, extend and contract the blastula Morphogenes correct answersSpecific signalling molecules that act on cells directly to induce developmental responses in concentration dependant manner Cytoplasmic determinants are mor...

Lecture 6: Vocab: ● Autosome: ○ Any chromosome not considered as a sex chromosome, or is not involved in sex determination. ○ It occurs in pairs in somatic cells and singly in sex cells (gametes) ● Bivalent: ○ a pair of homologous chromosomes. ● Drosophila melanogaster: ○ a species of fruit Fly much used in genetics because of the large size of its chromosomes. ● Epistasis (gene x gene interaction): ○ refers to genetic interactions in which one gene modifies the effects of anot...