New strand is 5’ to 3’ • TATA Box - TTAATTAA • RNA Polymerase - Reads and matches bases (One recipe; only reads leading strand) • Single strand produced; mRNA • Now produced pre-mRNA (You need exon‚ not intron) • Introns create spaces‚ need ligase to connect exons to make true mRNA. • Adds a poly A tail (on 3’ side) and 5’ (prime) cap (on 5’ side) used for defense • Leaves through pore to ribosome. • Messenger RNA will attach to ribosome • Transfer RNA comes in (reads in sets of 3) (mRNA - Codon; tRNA
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the number of OH- is greater than the number of H+ C. the number of H+ is equal to the number of OHD. the number of H+ is greater than the number of OHE. none of the above 20. Glucose breakdown leads to _________. A. DNA replication B. ATP buildup C. RNA synthesis D. ATP degradation E. ADP
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DNA |I | |INTRODUCTION | DNA (deoxyribonucleic acid)‚ molecule that acts as the mechanism of biological inheritance in almost all living creatures. DNA is found in nearly all cells and contains the coded instructions that control the workings of the cell. DNA is passed from parents to offspring‚ and contains the coded instructions that enable the offspring to develop from a single cell into an adult body. DNA is the most important molecule in life‚ and an understanding of the
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Define metabolism: The sum of all biological chemical reactions inside a cell or organism Differences in catabolism and anabolism: Catabolism is an enzyme-regulated chemical reaction that releases energy. Complex organic compounds such as glucose‚ amino acids‚ glycerol and fatty acids are broken down into simpler ones. The energy of catabolic reactions is used to drive the anabolic reactions. Anabolism is also enzyme regulated but requires energy for taking the simpler broken down components
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Task 2‚ 1.2‚ Select 1 type of tissue from each column. For each of the three chosen tissues‚ explain the benefits of cells combining together to form tissues with the specific functions. Jane Watson Glandular epithelial tissue: Glandular epithelial cells make up any glands within the body. These include sebaceous glands of the skin and glands in the intestinal lining (exocrine glands)‚ and many of the endocrine glands releasing hormones‚ such as the thyroid follicle. The function of glandular
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selection: trait inheritance & variation. Darwin’s theory for this was Pangenesis Father or geology – Charles Lyell Only 33% of Americans believe in evolution Meiosis results in 4 incomplete cells‚ with pairs from both mom and dad. RNA two types: messenger‚ transfer Mendals Laws – law of segregation‚ law of independent assortment Watson & Crick got nobel peace prize for discovering DNA Gene – section of DNA the code for protein Loci – location on gene where you can find alleles
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copying of parental DNA to form daughter DNA molecules with identical nucleotide sequences. The second is transcription‚ the process by which parts of the genetic message encoded in DNA are copied precisely into RNA. The third is translation‚ whereby the genetic message encoded in messenger RNA is translated on the ribosomes into a polypeptide with a particular sequence at amino acids. Some persons have spoken in favour of the discovery of the structure of DNA as a helical duplex of nucleotide polymers
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CHAPTER 8 1) DNA is found in structures called ______. -chromosomes 2) A(n) ______ is an example of an organism that can reproduce asexually. -amoeba 3)+++ Examine the figure below. Nucleosomes are made of ______. - DNA wrapped around histone proteins 4)++ As shown in the following figure‚ plant cell cytokinesis differs from animal cell cytokinesis because - Plant cells form a cell plate and animal cells do not 5)The chromosomes of eukaryotic cells are found in the _____ -Nucleus 6) Chromatin consists
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Mr. Clark Honors Bio Period 3 10-19-13 Eukaryotic Cell vs. Prokaryotic Cell Eukaryotic cells do have a nucleus but Prokaryotic cells do not. Prokaryotic cells usually only have one chromosomes when Eukaryotic cell have more than one. Eukaryotic cells have mitochondria but Prokaryotic cells do not. Prokaryotic cells are usually unicellular and Eukaryotic cells are usually multicellular. Also Eukaryotic cells are larger than Prokaryotic cells. Both Eukaryotic and Prokaryotic cell have vacuoles
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one of the greatest biological discoveries in the history of mankind. It is not only related to biology but is tied to the study of chemistry as well because of the convoluted molecular structure. DNA is short for the molecule deoxyribonucleic acid. RNA or ribonucleic acid is another nucleic acid derived from DNA and used as a template to make proteins‚ the product of the genetic code. In an article‚ “What is DNA?” written by James Randerson‚ DNA is described as‚ “...the master code for life ... the
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