QUESTION 1 The DNA of humans and chimps differs by about 10%. True or False? Tru

Question

QUESTION 1 The DNA of humans and chimps differs by about 10%. True or False? True ? False QUESTION 2 In recombinant DNA technology, plasmids O are necessary for cellular respiration in certain plants O are used to insert foreign DNA into bacteria. O show restriction enzymes where to cut bacterial DNA. O are the sites of protein synthesis in bacteria. O are isolated from the blood of mammals. QUESTION 3 Enzymes that cut double-stranded DNA at specific sites are called QUESTION 4 Which of the following is a valid difference between traditional (selective breeding) and modern (genetic engineering) forms of biotechnology? O Genetic engineering can use genes from unrelated species, whereas selective breeding must use genes from the same or very closely related individuals O Selective breeding can be done much more quickly than genetic engineering O Genetic engineering can alter the DNA sequence of entire populations, whereas selective breeding cannot. QUESTION 5 All of the following are benefits of sequencing the human genome EXCEPT: O the number of genetic disorders that can be diagnosed with molecular techniques has increased. O better comparisons can be made between human genetics and the genetics of other organisms. O genes were discovered whose functions were previously unknown. O more genes that cause disease have been discovered. O every genetic disorder is now curable or preventable. QUESTION 6 If you cut out a gene using the restriction enzymes EcoRI and BamHl, what enzyme(s) will you need to insert the gene into another chromosome? O EcoRI only O BamHll only O Both EcoRI and BamHI O Neither of these enzymes

Explanation / Answer

1. False. Human and chimps share almost 99% of their DNA and thus differ by only 1%.

2. Option 2nd is correct. Plasmids are circular DNA which are used to insert the foreign DNA into bacteria.

3. Restriction endonuclease.

4. Option 1st is correct. Genetic engineering can be used to remove and insert a gene of intereset.

5. Last option is the correct answer. Human genome sequencing made many thing easy but still there are many genetic disorder which are not curable or preventable.

6. Option last is the correct answer. To insert a gene, ligase enzyme are used.

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