BIO Final Study GUIDE 1

8/8/2019 BIO Final Study GUIDE 1

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1 | Study Guide Final exam May 4th

Ignoregrammaticalerrors

____________________________________LECTURE 9______________________________________

1. DNA is a polymer of ______________________.2. Nucleotide contains: 1.__________________, 2.________________________,

3._______________________________________

3. Nitrogen containing bases:_______________and______________ purines

______________and___________pyrimidines

(_______________in RNA)

4. Fill in the missing base pair.


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5. What is the arrow above pointing to (hint: it is known as the linkage between prime ends)6. DNAs double strands are held together by what bond?7. The two strands run ________________________, one runs in the 5- 3 direction while the

other runs in the ____-____ direction. The strands are twisted to form a _______________

________.

8. Where is the genetic information for DNA held?9. What is a gene?

10.For and organism to evolve what must happen?

11.What is a mutation?

12.What is one (the only way)of the three different ways DNA could serve as? Explain


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13.List all of the enzymes used for DNA replication and explain each

14.The leading strand builds in what direction while the lagging strand builds in the opposite?

15.For DNA replication the lagging strand goes through a slightly different process then the leadingstrand what is the step by step process that it goes through?

16.What is the origin of replication?


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17.What are telomeres?

18.What are three DNA repair mechanisms to minimize the number of errors? Define each

19.What are the four types of RNA?

20.What is RNA polymerase II ?

21.(True/ False) Just one DNA strand (the template strand) is used to make the RNA.22.What are the three steps involved in transcription? Explain the main process of each


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23.How is RNA polymerase like DNA polymerase?

24._________________ are heritable changes in DNA that are passed on to daughter cells.

25.Multicellular organisms have two types of mutations what are they? Explain

26.Mutations of single genes is known as?27.What is a chromosomal mutation?

28.Match the pictures with its appropriate mutation. Define each mutation

29.Which of the mutations causes sickle-cell anemia?


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30.What is a frame-shift mutation?

31.What are the four different types of chromosomal mutations ? Define each

32.Name the following chromosomal mutations

33.What is chromatin?

34.What are histones?


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35.These wraps of DNA and histone proteins are called ___________________and resemble beadson a string.

36.How many types of histones are there?37.What is the function of H1?

38.What are some of the functions of histones?

* Histones can be methylated, causing DNA to be bound more tightly, which will down-regulate or even

inhibit gene transcription.

OR

Histones can be acetylated, causing DNA to be bound more loosely, which will encourage transcription.

39.What does the Greek prefix epi- in epigenetics imply?40.(true/false) {If false fix sentence if true leave as it is }

Epigenetics is an emerging frontier of science that involves the study of changes in the regulation of geneactivity and expression that are dependent on gene sequence.

*Epigenetics focuses on processes that regulate how and when certain genes are turned on and turned off.


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| Study Guide Final exam May 4th


____________________________________LECTURE 10_____________________________________

1. All cells come from ___________ cells.2. PICTURE below label the following and What is the R point?

3. What four events are required for cell division? Explain each

4. What is the difference in cell division between prokaryotes and eukaryotes?

5. What three subphases does interphase consist of?


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6. What are two types of signaling molecules? Define

7. What are growth factors?

8. WHICH IS ACTIVE AND INACTIVE EXPLAIN WHY

9. What happens once kinase is activated?


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10.Explain the restriction point of the cell cycle? Which part is in the cytoplasm?

11.What is the RB(retinoblastoma protein)?

12.What does Phosphorylated RB protein (pRB) do to the cell cycle in G1?

13.What is RB known as?14.How many phosphorylations does it take to activate RB?

15.How many chromosomes do humans have?

16.What are each sets of chromosomes called?

17.What is SNPs(pronounced as Snips)? What does it effect?


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18. Name and define each Phase


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19.TERMINOLOGYAlleles-

Chromatin-

Chromatid-

Chromosomes-

Genotype-

Phenotype-

Homozygous-

Heterozygous-

Centrioles-

Centrosomes-


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ii) Metaphase I is:

iii) Anaphase I is:

iv) Telophase I is:

10. Independent assortment plus crossing over ____________________ the genes.

11.Meiosis II is similar to mitosis except ______________________ does NOT occur.The resulting cells are ____________.

In metaphase II the homologous chromosomes align on the ___________________ plate.

In anaphase II the ________________ ____________________separate.

12.What is synapsis and crossing-over?


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13.What does meiosis lead to?

14.Define independent assortment.

15. Input the missing information.

16.What two ways does the cell die? (define each)

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BIO Final Study GUIDE 1