Question

c) The steps or rungs of the DNA ladder are composed of phosphate group 4 Deoxyribose 15. Use Figure 2 and 3 of the lab to compare the genome of a human with a mouse, fruit fly and yeast. paired in a specific way. d) Adenine in one DNA strand always pain with thymine ) Bases in opposite strands of a DNA molecule are linked together by hydrogen in the other strand and bonds. Yeast Human Mouse Fruit Fly Number of chromosomes Number of genes. Percentage of genes shared with other humans. Part II: Extracting DNA 16. Once DNA is extracted from cells, what can it be used for? 17. Which cells in your body contain DNA? Where is it located in your cells? 18. Identify the substance or material in the DNA extraction procedure that carries out each role: a) Caused DNA to precipitate out of the extract solution so you can see it. b) Added positively charged ions for negatively charged DNA to stick to c) Removed the plasma membrane and nuclear membrane. d) Separated the DNA in the solution from larger cell components. Part III: Protein Synthesis Virtual Activity Table IA: Protein Synthesis with 1st DNA Template Strand DNA Codons in the 1M Template Strand mRNA Sequence (List codons) Amino Acids in the Protein **Use the Genetic Code Chart on page 217 to determine the amino acids that will be placed in the protein.

Answer 1

16. DNA which is isolated from cells can be used for -

Sequencing of whole genome

Isolation of a specific gene to study its structure and function

Formation of recombinant DNA molecule

Amplification of a gene

Forensic use - paternity testing and solving criminal cases

17. DNA is present in each and every cell of our body. It is present in a double membrane bound organelle called nucleus.

18.

A. Chilled ethanol

B. Salt (Na+ ions)

C. Lysis buffer

D. Phenol chloroform solution

According to the guidelines, only first question can be answered. Please give a good rating.