DNA project by halee wascom https://padlet.com/haleewascom711/vlzkz0qksxve Made with wonder en-us 2018-01-19 15:04:46 UTC 2025-10-07 14:33:14 UTC hello@padlet.com 1//What does DNA stand for? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222807345 Deoxyribonucleic acid]]> 2018-01-19 15:05:20 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222807345 2//What two sides of the DNA molecule are held together across the center of the helix by what type of bond? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222808172 Hydrogen Bond

]]> 2018-01-19 15:06:49 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222808172 3//What is the name of the small repeating subunits that compose DNA and RNA? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222809404 Nucleotides]]> 2018-01-19 15:08:52 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222809404 Halee Wascom haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222810353 Ian Newland
Abel Hernandez]]> 2018-01-19 15:10:31 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222810353 4// What are the rungs of the DNA 'ladder' made of? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222811012 the 4 nitrogen bases
thymine, adenine, guanine, cytosines

]]> 2018-01-19 15:11:36 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222811012 5//Inside the nucleus, the DNA is tightly wound around proteins called? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222812243 Chromosomes]]> 2018-01-19 15:13:58 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222812243 6//Why did Watson and Crick refer to the DNA molecule as "double helix"? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222813348 Because that's the shape of the molecule ]]> 2018-01-19 15:16:09 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222813348 7//What is the name of the structure seen to the right? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222814571 butyric acid]]> 2018-01-19 15:18:52 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222814571 8//Label the three parts composing this structure haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222816971 From left to right; phosphate group, deoxyribose (sugar), nitrogen containing base]]> 2018-01-19 15:24:17 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222816971 9//How did Chargaffs rules help Watson and crick develop their model of the DNA molecule? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222818097 His rules helped them see that adenine and thymine always pair up]]> 2018-01-19 15:26:26 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222818097 10// What three critical things must genes be able to do? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222819494 first genes have to carry information from one generation to the next. second they have to put that information to work by determining the heritable characteristics of organisms. third genes have to be easily copied, because all of a cells genetic information is replicated every time the cell divides.]]> 2018-01-19 15:28:56 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/222819494 11//The process of forming an exact copy of the DNA molecule is called what? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140219 Replication ]]> 2018-01-21 19:27:37 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140219 12// What type of bond holds the nitrogen bases to one another across the middle of the helix? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140401 Hydrogen Bonds]]> 2018-01-21 19:29:04 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140401 13// What type of bond connects one nucleotide to the next nucleotide? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140647 Covalent Bonds]]> 2018-01-21 19:31:21 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140647 14//In what part of the cell does replication occur? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140816 In the S phase of Interphase]]> 2018-01-21 19:32:46 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140816 15//When replication occurs, it takes place at multiple sites along the molecule called what haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140943 Origins of Replication ]]> 2018-01-21 19:33:55 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223140943 16//What is the primary function of DNA? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223141093 Store and transmit genetic information ]]> 2018-01-21 19:35:12 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223141093 17//Why is it so important that the DNA molecule is able to make copies of itself? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223141210 It is so important because DNA must copy itself in order to have enough DNA for the cell to divide]]> 2018-01-21 19:36:20 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223141210 18// What is meant by "base-pairing" rules? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223141443 The bases of the two DNA strands always pair up in he same way ]]> 2018-01-21 19:38:45 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223141443 19// What is the advantage to the multiple sides of replication along the DNA molecule? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223142319 DNA begins as origins of replication along and the DNA molecule speeds up the replication process]]> 2018-01-21 19:47:02 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223142319 20//What might cause accidental damage or changes in existing DNA haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223142602 Exposure to chemicals, radioactivity, X-rays, excessive exposure to ultraviolet light]]> 2018-01-21 19:49:49 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223142602 21// Describe the structure of a ribosome haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223357996
Ribosomes construct proteins, they are made up of rRNA and various proteins]]> 2018-01-22 14:57:20 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223357996 22//When does a ribosome become functional? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223360358 When the subunits attached to the mRNA]]> 2018-01-22 15:01:21 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223360358 23// If a section along the DNA molecule had a nucleotide sequence of TACGCAATC, the complimentary section on the RNA molecule would be what? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223362095 AUGCUUAG]]> 2018-01-22 15:04:17 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223362095 24// Explain how a substitution of one nitrogen base for a new nitrogen base might affect the protein being formed. haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223365614 The new nitrogen base would cause a new codon to form which could cause a different amino acid to end up on the protein chain.]]> 2018-01-22 15:10:01 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223365614 25// Explain how a deletion or an addition of a nitrogen base might affect the protein being formed. haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223368532 This can improperly group codons, and would alter the reading of the rest of the mRNA]]> 2018-01-22 15:14:48 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223368532 26// what is the importance of mutations to life on earth? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223368681 99 percent of mutations are harmful, 2 percent are lethal, less than 1 percent produce something better. ]]> 2018-01-22 15:15:01 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223368681 27// What are the two types of mutations? define each. haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223370088 Gene mutations produce a change within a single gene. Chromosome mutations produce changes n the whole chromosome. ]]> 2018-01-22 15:17:24 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223370088 28// Distinguish between a termination signal (terminator) and a stop codon. haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223372644 A terminator is the DNA sequence that signals the end of transcription, A stop codon signifies the end of the protein.]]> 2018-01-22 15:21:01 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223372644 29//Three codons do not call for any amino acid. What role is played by these codons? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223374131 Three codons are stop codons and act as signals from the end of a protein chain.]]> 2018-01-22 15:23:39 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223374131 30//What does "RNA " stand for? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223375135 Ribonucleic acid]]> 2018-01-22 15:25:37 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223375135 31//What type of sugar is found in RNA? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223375723 Deoxyribose]]> 2018-01-22 15:26:44 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223375723 32// Which nitrogen base is found in RNA, but not in DNA? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223376236
Uracil]]> 2018-01-22 15:27:35 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223376236 33// What are the three basic differences between DNA and RNA? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223376819 RNA is single stranded. DNA is double stranded, The sugar in RNA is ribose. The sugar in DNA is deoxyribose, RNA has uracil that pairs with adenine. DNA has thymine that pairs with adenine.]]> 2018-01-22 15:28:33 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223376819 34// What are the three types of RNA? What is their basic function? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223800038 1/ mRNA sends messages to the tRNA 2/ tRNA translates the messages 3/ rRNA bunds the two together]]> 2018-01-23 14:51:00 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223800038 35// What is gene expression? What are the two stages of gene expression? haleewascom711 https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223801955 The first stage is called the transcription. During transcription, an RNA copy of gene is made. During translation, the second stage of gene expression, three different kinds of RNA work together to assemble amino acids into a protein molecule.  ]]> 2018-01-23 14:54:02 UTC https://padlet.com/haleewascom711/vlzkz0qksxve/wish/223801955