Today we finished off the last two small topics of the mole unit: % composition and molecular formula.
We started making some silver with a mini lab: Moles of copper and silver. Finish this lab off on Thursday.
Hebden homework: pg. 91 Ex: 44 e, f and h
Tuesday 7 March 2017
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.
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.
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