2. ISM Unit 4 Genetics

3. A:B: ChromosomeGenotype #1 A specific part of a DNA that when transcribed and Translated forms a specific polypeptide. C:D: AlleleGene

4. D

5. A:B: MutationInsertion mutation #2 The insertion of an incorrect nucleotide is… C:D: Base substitution mutation DNA doesn’t make mistakes!!

6. C

7. A:B: LeucineValine #3 Glutamic acid is the amino acid that should Be coded on hemoglobin, but for Sickle-cell Anemia this amino acid is coded for C:D: GlycineTyrosine

8. B

9. A:B: Interphase IInterphase II #4 Crossing over occurs in C:D: Prophase IProphase II

10. C

11. A:B: Mitosis forms 2 haploid cells Meiosis forms 4 diploid cells #5 One difference between meiosis and mitosis is C:D: Mitosis produces genetically different cells Meiosis produces genetically different cells

12. D

13. A:B: Length and widthBanding patterns and length #6 Chromosomes can be distinguished on Karyograms by what 2 features? C:D: Homologous pairsThe centromere and homologous pair

14. B

15. A:B: 50% homozygous recessive 50% Heterozygous #7 If 2 heterozgyous parents had offspring What are the possible genotypes? C:D: 100% Homozygous100% Heterozygous

16. B

17. A:B: It gives you the DNA profile It separates the base pairs #8 Polymerase chain reaction (PCR) is useful for forensics because C:D: Makes millions of copies of the DNA Uses ligase to cut the DNA

18. C

19. A:B: Size and chargeSize of the DNA fragments #9 Gel electrophoresis separates DNA by C:D: Charge of the DNAThe amount of DNA

20. A

21. A:B: Transfer of DNATransfer of Chromosomes #10 Genetic engineering involves C:D: Transfer of GenesTransfer of the nucleus

22. C

23. A:B: The genetic code is universal Most amino acids are transferred #11 Gene transfer is possible because C:D: Factor IX allows for the transfer mRNA can transfer

24. A

25. A:B: Obtain the desired gene Attach the DNA to a vector #12 What steps are need for gene transfer C:D: Culture the bacteriaAll of the above

26. D

27. A:B: Increase food production Tolerance to extreme weather #13 Benefits of GMO’s are.. C:D: Disease resistantAll of the above

28. D

29. A:B: Used to clone peopleUsed to make stem cells #14 Therapeutic cloning is C:D: Used to make tissues or organs Can be used with DNA from other species

30. C

31. A:B: Ligase and mRNA polymerase mRNA polymerase and helicase #15 What two enzymes are used to make recombinant plasmid C:D: Ligase and restriction enzyme Restriction enzyme and mRNA polymerase

32. C

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