Welcome to the General Biology I, Take-Home Exam 3 learning "hints" page!


Text hints in red is Unit I material -- which you should know by now.

Stay tuned for "hints" in blue color!

And then...?




Answer A if a statement is true. Answer B if a statement is false.

 01. T(a) F(b) The building blocks of DNA are amino acids. Textbook page 46.

02. T(a) F(b) Diploid eukaryotic organisms have two sets of chromosomes, one from each parent. Textbook page 156, 166.

03. T(a) F(b) An acid has a pH above 7 (up to pH 14). Textbook page 28.

04. T(a) F(b) Normal human body temperature is 98.6°C. Textbook Appendix VI.

05. T(a) F(b) For dominant traits to be expressed the alleles must be homozygous. Lab manual page 181.

06. T(a) F(b) A person with one X chromosome and one Y chromosome is abnormal.
(abnormal = not normal, deviant -- Am. Heritage Dictionary) XX = female, XY = male. Now answer the question! :-) Textbook page 192.

07. T(a) F(b) A person with the genetic trait DD, mating with a person with Dd, cannot receive offspring with dd. Do the Punnett square to find out!

08. T(a) F(b) Red & green color blindness is a sex-linked trait. Also called X-linked traits -- occur only on the X-chromosome. Textbook page 194. Textbook page 195.
Multiple choice: Choose the most correct answer.

 09. An egg produced by a human female contains Textbook page 192 (also pages 157 and 163).
A. two Y chromosomes
B. two X chromosomes
C. one Y chromosome
D. one X chromosome
E. None of the above


10. Down syndrome is the result of Textbook page 198.
A. independent assortment
B. genetic linkage
C. crossing-over
D. incomplete dominance
E. nondisjunction

11. Number of chromosomes in human sex cells? Textbook page 188 - 189.
A. 1
B. 2
C. 22
D. 23
E. 46

12. Number of X chromosomes in the cells of a human female? Textbook page 188 - 189.
A. 1
B. 2
C. 22
D. 23
E. 46

13. Fill in the blanks: A cell that contains eight chromosomes and is undergoing mitosis will produce __________ daughter cell (s); each daughter cell will contain _________ chromosomes Critical thinking + Textbook page 162.
A. two ; eight
B. two ; four
C. four ; four
D. one ; eight
E. one ; four

14. The environmentally and genetically determined observable physical appearance of an organism. Lab manual page 181.
A. Allele
B. Gene
C. Genotype
D. Phenotype
E. None of the above

15. Alternative forms of a gene for a particular characteristic. Lab manual page 180.
A. Allele
B. Gene
C. Genotype
D. Phenotype
E. None of the above

16. 2n Textbook page 188 - 189.
A. haploid number
B. diploid number
C. in humans 23
D. B & C
E. None of the above

17. Pattern of inheritance in which a particular trait has more than two alleles, although each individual has only two of these alleles, e.g., ABO blood types. Textbook page 176.
A. multiple alleles
B. incomplete dominance
C. polygenic inheritance
D. nondisjunction
E. disjunction

18. An allele that expresses itself and masks the effects of the other allele for the trait (this allele masks the homologous allele). Lab manual page 181.
A. Dominant allele
B. Recessive allele
C. X-linked allele
D. wild type
E. A, C, and D

19. In simple genetic inheritance, with two alleles only, the trait is determined by: See online lecture notes!
A. the type of alleles received from the parents
B. the environment
C. the interaction between these alleles
D. A and C are correct
E. A, B, and C are correct

20. An allele that does not express itself (does not show up) when the homologous allele is present. Lab manual page 181.
A. Dominant allele
B. Recessive allele
C. X-linked allele
D. Wild type
E. A, C, and D
21. An example of a homozygous condition is Lab manual page 181.
A. aa
B. Aa
C. AA
D. All of the above
E. A and C

22. An example of a heterozygous condition is Lab manual page 181.
A. aa
B. Aa
C. AA
D. All of the above
E. A and C

23. For all cells, the molecule of inheritance. Textbook page 46.
A. DNA
B. mRNA
C. rRNA
D. tRNA
E. hemoglobin

24. Both alleles for the trait are identical. Lab manual page 181.
A. Homozygous trait
B. Allele
C. Dominant allele
D. Recessive allele
E. Heterozygous trait

25. The probability of parents w. genotypes Rr x rr having an offspring w. the genotype rr is Do the Punnett square to find out!
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

26. The probability for parents w. genotypes EE x Ee (where E = free earlobes) having an offspring w. attached earlobes (e) is Do the Punnett square to find out!
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

27. The probability of parents w. genotypes Ss x Ss having an offspring w. the genotype ss is: Do the Punnett square to find out!
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

28. The probability of parents w. genotypes Bb x Bb having an offspring w. the homozygous dominant genotype is Do the Punnett square to find out!
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

29. In snapdragons, heterozygotes have pink flowers, whereas the two homozygotes have red flowers and white flowers. (This is called incomplete dominance.) When plants with red flowers are crossed with plants with white flowers, what proportions of the offspring will have pink flowers? Do the Punnett square to find out! Textbook page 176.
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

30. In a wild flower, the genotype Bb (heterozygous) has light blue flowers, whereas the dominant BB has dark blue flowers and the recessive bb has white flowers. (Like snapdragons, this is called incomplete dominance.) When plants with dark blue flowers are crossed with plants with white flowers, what proportions of the offspring will have light blue flowers? Do the Punnett square to find out! Textbook page 176.
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

31. In fruit flies the wing trait for normal wing (N) is dominant, and "wingless" (n) (vestigial wing, i.e., they cannot fly) is recessive. Two fruit flies fell in love and decided to make passionate love on a banana. Both flies were interested in what kind of offspring they might have. The genotypes of both flies were heterozygous for the normal wing trait. They consulted a fruit fly geneticist and asked what proportion of their offspring would be able to fly? Do the Punnett square to find out!
A. zero
B. 25%
C. 50%
D. 75%
E. 100%

32. In ABO blood type pattern of inheritance (multiple alleles: in which a particular trait has 3 or more alleles, although each individual has only two of these alleles) the possible alleles are Do the Punnett square to find out! Textbook page 176.
A. IA, IB, i
B. IAIA, IBIB, IAIB, IAi, IBi, ii
C. HbA, HbS
D. Ai, Bi, 0i
E. A, B, AB, 0

33. A woman with blood type 0 has a child with the genotype ii. The father has the blood type A. The genotypes of the parents are Do the Punnett square to find out! Textbook page 176.
A. father IAIA, mother ii
B. father IAi, mother ii
C. father ii, mother IAi
D. father ii, mother IAIA
E. father ii, mother ii

34. If one parent has type A blood and the other parent has type B, then which of the following is possible in the children? Do the Punnett square to find out! Textbook page 176.
A. only AB
B. A and AB
C. B and AB
D. A, B, AB, and 0
E. only 0

35. The sugar in DNA is Textbook page 46.
A. Glucose
B. Fructose
C. Galactose
D. Ribose
E. Deoxyribose

36. Demonstrate that you understand DNA replication by matching Guanine with the correct base below Textbook page 212 - 213.
A. Adenine
B. Thymine
C. Guanine
D. Uracil
E. Cytosine



37. Demonstrate that you understand DNA replication by matching Thymine with the correct base below Textbook page 212 - 213.
A. Adenine
B. Thymine
C. Guanine
D. Uracil
E. Cytosine

38. Demonstrate that you understand DNA transcription by matching Adenine with the correct base below Textbook page 220.
A. Adenine
B. Thymine
C. Guanine
D. Uracil
E. Cytosine

39. Demonstrate that you understand DNA transcription by matching Thymine with the correct base below Textbook page 220.
A. Adenine
B. Thymine
C. Guanine
D. Uracil
E. Cytosine

40. One triplet nucleotide on mRNA is called a/an Textbook page 222.
A. code
B. anti-codon
C. codon
D. amino acid sequence
E. non of the above is correct

41. One triplet nucleotide on tRNA is called a/an Textbook page 223.
A. code
B. anti-codon
C. codon
D. amino acid sequence
E. non of the above is correct

42. If the triplet code on DNA is ATC, the codon is Textbook page 222 - 223.
A. ATC
B. AUC
C. TAG
D. UAG
E. AUG

43. If the triplet code on DNA is ATC, the anticodon is Textbook page 222 - 223.
A. ATC
B. AUC
C. TAG
D. UAG
E. AUG

44. Select the correct sequence: Textbook page 2219, 228.

A. Protein - transcription - DNA - translation - RNA
B. DNA - translation - RNA - transcription - Protein
C. DNA - replication - RNA - translation - Protein
D. DNA - transcription - RNA - translation - Protein
E. RNA - transcription - DNA - translation - Protein

45. Macromolecule with monosaccharides (all or in part) as buildingblocks? Textbook page 38 and 46.
A. carbohydrates
B. proteins
C. carbohydrates and proteins
D. nucleic acids
E. carbohydrates and nucleic acids

46. Correct order of the cell cycle Textbook page 144.
A. M - G1 - S - G2
B. G1 - M - G2 - S
C. G1 - S - G2 - M
D. A and C
E. A, B, and C

47. Inherited as simple inheritance See online lecture notes!Lab manual page 181.
A. AB0 Blood Groups
B. Ear Lobes
C. Red/Green Color Blindness
D. Sickle Cell Anemia
E. Down Syndrome

48. Inherited as complex gene pattern inheritance -- incomplete dominance See online lecture notes!Textbook page 176.
A. AB0 Blood Groups
B. Ear Lobes
C. Red/Green Color Blindness
D. Sickle Cell Anemia
E. Down Syndrome

49. Inherited as complex chromosomal pattern inheritance -- non-disjunction See online lecture notes!Textbook page 198.
A. AB0 Blood Groups
B. Ear Lobes
C. Red/Green Color Blindness
D. Sickle Cell Anemia
E. Down Syndrome

50. Inherited as complex chromosomal pattern inheritance -- sex linked See online lecture notes!Textbook page 195.
A. AB0 Blood Groups
B. Ear Lobes
C. Red/Green Color Blindness
D. Sickle Cell Anemia
E. Down Syndrome


Short answer: On-line Study Guides (Genetics, DNA, Evolution -- do only include these, the others are done already!)

Print out one of each of the on-line study guides (on the learning tools page on Dr. Nilsson’s CyberOffice). Answer ALL questions. Spelling must be correct. Handwriting must be legible. (If handwriting is not CLEARLY legible on ALL answers, the study guide will not be grades and you will receive a zero on that part of the exam. Your writing is intended to communicate something to a reader, use a typewriter if you have such poor handwriting that no one can read what you communicate.) Note: All answers do not necessarily have to be answered correctly, as long as you have made a serious attempt to answer each question correctly -- and left NO blanks!!! Staple all study guides in order to the exam. Students must turn in their OWN unique answered study guide. Photocopies are NOT allowed.

Short answer: Memorization quizzes. (DNA, Evolution -- do only include these, the others are done already!)

Print out TWO of each of the memorization quizzes (links are on the quiz page on the General Biology Hub). Fill in the answers. Spelling must be correct. Handwriting must be legible. (If handwriting is not CLEARLY legible on ALL answers, the study guide will not be grades and you will receive a zero on that part of the exam. Your writing is intended to communicate something to a reader, use a typewriter if you have such poor handwriting that no one can read what you communicate.) Staple all quizzes in order to the exam. Student must turn TWO (2) unique copies of EACH of their OWN unique quiz with handwritten answers. Photocopies are NOT allowed.

WebCT Evolution 2 bulletin board discussion worksheet.

 See the worksheet instructions for details.

In addition, the student's signatures on the attendance rosters after the lectures/labs for Meiosis, Genetics, and DNA, will be part of the exam grade.

Comment on handwriting and spelling on the attached assignments: This instructor does normally not take off points for "normal" poor handwriting on the On-line Study Guides, the Memorization Quizzes, or the Evolution 2 Worksheet. Many students have taken time to write answers in a neat handwriting and being careful with the spelling. If you think you learn better by writing like an ungulate (e.g. a pig) when you study at home -- go ahead. However, in order to be fair to students spending time to write neatly, if a student writes with a "sloppy", illegible handwriting on assignments -- for whatever reason, including making a point to protest this professors handwriting policy, the student will not receive any points for that particular work. Handwriting on the Comprehensive Study Guides must always be legible. No exceptions. Since this is a take-home exam, you have PLENTY of time to write neatly when you answer the questions at home. I must be able to read your answers with normal reading. Make arrangements for a typewriter with STC, if you don't own one, or write so I can read your answers within a normal time frame for grading, and without having to guess what you write. If you are trying to mask poor spelling by writing like an ungulate -- a common reason for using poor handwriting, learn how to spell or get a dictionary.

As you already know from postings online I am not the only professor with this teaching philosophy:


"You're right. This is not an English class. One reason English classes exist is so that you'll be able to write in classes like this. You're a college student; I expect you to write like one."
Sue Frantz, Psychology Professor, Highline Community College.


You have reached the end of the exam!

Make sure your name is on the first page of this exam! Make sure your name is on BOTH sides of the scantron form!