Biology 12

Today we worked on our genetic disorder project on the ipads.   Practice DNA test should be completed for tomorrow.

Answer Key:  DNA and RNA pre-test answer key:
1)D    2)D    3)B     4)D    5)A     6)B    7)A     8)B    9)F    10)B   11)A     12)G     13)B    14)B   15)F

DNA, RNA and Protein Synthesis.    Chapter Test B
1)F    2)C    3)G    4)H    5)B    6)E   7)A    8)D    9)Translation    10)Anticodons         11)Uracil
12)transforming agent or genetic material    13)RNA polymerase   14)codons   15)B   16)B     17)B
18)C     19)C   20)D     21)A      22)C      23)A    
24) In transcription, RNA is produced from DNA.  In translation, polypeptides are assembled from information in mRNA.
25) DNA is a double helix formed from nucleotides that have deoxyribose and a phosphate group as the backbone.  The bases of DNA are cytosine, guanine, thymine, and adenine.  RNA is formed from nucleotides that have ribose and a phosphate group as the backbone.  The bases of RNA are cytosine, guanine, adenine, and uracil.
26) These codons mark the beginning and ending of a gene that is being translated.
27) mRNA is a single, uncoiled chain of nucleotides that carries genetic information from the nucleus to the site of translation in eukaryotes.  tRNA consists of nucleotides folded into a hairpin shape and binds to amino acids.  rRNA consists of nucleotides in a globular form.  Along with proteins, rRNA makes up ribosomes.
28)  (1)Helicases separate the two strands of DNA at replication forks.  (2) DNA polymerases construct a complementary chain one nucleotide at a time.
(3)Replications ends with two identical copies of the original DNA molecule.
29) Radioactive elements were used because they can be followed or traced.  They were used to locate the genetic material of bacteriophages after they infected bacteria.
30) (a) guanine, cytosine, adenine, and thymine  (b) guanine pairs with cytosine, adenine pairs with thymine.  (c)Yes; the percentage of cytosine is about the same as the percentage of guanine, and the percentage of thymine is about the same as the percentage of adenine.  (d)Yes; DNA of vastly different organisms contains the same four nucleotides.   (e)34.7 percent; the percentage of uracil should match the amount of thymine because uracil replaces thymine in mRNA.
  

Chemistry 11

Today we completed the last topic of the Mole Unit:  Empirical Formula

We did some empirical formula practice problems (pink sheet) and turned them in.

Due tomorrow:  Mole Conversions Worksheet

Chemistry 12

Today we did a worksheet showing mRNA moving out of the nucleus and proteins being built.

We also started research on our genetic disease project.

Practice test for DNA test also given out. 

Biology 12

Today we finished off the Power Point Notes on DNA.   We finished recombinant DNA and PCR notes. 

We finished our "cutin' and pastin' DNA replication sheet and then did another sheet showing DNA transcription to make RNA. 

Homework:   Finish off all plasmid, RNA and proteins questions in your module booklet.    Tomorrow we will have a quiz on RNA and protein synthesis.

Chemistry 11

Today we got back our Unit 2 Tests.   Well done!    A couple of 100%s!!

We took notes on moles and drew a moles are the heart of Chemistry diagram.

We figured out how to convert back and forth from moles to grams or from particles to moles.

 Hebden Homework:  pg. 80 Ex: 6 a-d       pg. 82 Ex: 8 a-d      and Ex: 9 a-d.

Second half we did a "mini lab" on calculating relative masses. 

Chemistry 11

Today we wrote the Unit 2 Test on Naming and Writing Formulas for Compounds. 

Took some notes and watched a short video on the mole concept. 

Homework:  Hebden Read pg. 77-79 do Ex: #1-5

Biology 12

Today we corrected the DNA structure, function and replication handout.

Took notes from the power point on transcription and translation to make proteins.

Unit 1 Topic 2 Booklet questions (B) DNA replication and section B:  protein synthesis (A) are due next class.