Download Reproduction/Genetics Unit Group Quiz (Chapters 5-6)

Reproduction/Genetics Unit Group Quiz (Chapters 5-6)
True/False
Indicate whether the statement is true or false (write out the word!).
1. Human body cells undergo asexual reproduction.
2. A gene is a segment of DNA.
3. A male can produce sperm with either an X or a Y chromosome.
4. Human sperm and egg cells have 23 chromosomes.
5. A karyotype is a type of gene.
6. Cells spend most of their lifetime in interphase.
7. Cancer is a disease characterized by uncontrolled cell division.
8. In asexual reproduction two parents each pass copies of all of their cells to their offspring.
9. The allele for a recessive trait is usually represented by a capital letter.
10. Heterozygous individuals have two of the same alleles for a particular gene.
11. Probability is the likelihood that a certain event will occur.
12. Most people have very harsh/controversial views about using adult stem cells for research.
13. Bacteria are known for using fragmentation as their form of asexual reproduction.
14. It is possible for a person with a heterozygous genotype to show a recessive phenotype.
15. Sickle cell disease is a dominant inherited disorder.
Multiple Choice
Identify the letter choice that best completes the statement or answers the question.
16. In order to fit within a cell, DNA becomes more compact by
a. breaking apart into separate genes. b. extending to form very long, thin molecules. c. wrapping tightly around
associated proteins/histones. d. being enzymatically changed into a protein.
17. In humans, gametes contain
a. 22 autosomes and 1 sex chromosome. b. 1 autosome and 22 sex chromosomes. c. 45 autosomes and 1 sex
chromosome. d. 1 autosome and 45 sex chromosomes.
18. How many chromosomes are in the body cells of an organism that has a haploid number of 8?
a. 4 b. 8 c. 12 d. 16
19. Refer to the illustration above. The cell in diagram 1 is in
a. metaphase. b. telophase. c. anaphase. d. prophase.
20. Refer to the illustration above. Mitosis begins with the stage shown in diagram
a. 1. b. 2. c. 3. d. 4.
21. Refer to the illustration above. The cell shown in diagram 5 is in
a. metaphase. b. telophase. c. anaphase. d. prophase.
22. Refer to the illustration above. Which of the following correctly indicates the order in which these events occur?
a. A, B, C, D b. C, B, A, D c. B, A, C, D d. A, C, B, D
23. Refer to the illustration above. The process shown in the diagrams is
a. mitosis. b. chromosomal mutation. c. meiosis. d. dominance.
Using the information you have learned about cell reproduction, infer answers to the questions below about a cell
with a diploid number of 4 chromosomes. Select from among the diagrams below, labeled A, B, C, D, and E, to
answer the questions.
24. Which of the diagrams above depicts a cell at the end of meiosis II?
a. A b. B c. C d. D
25. Which of the following is NOT a type of asexual reproduction?
a. budding b. fragmentation/regeneration c. binary fission d. fertilization
26. The “father” of genetics was
a. T.A. Knight. b. Hans Krebs. c. Gregor Mendel. d. R.C. Punnett
27. Mendel’s law of segregation states that
a. pairs of alleles are dependent on one another when separation occurs during gamete formation. b. pairs of
alleles separate independently of one another after gamete formation. c. each pair of alleles remains together
when gametes are formed. d. the two alleles for a trait separate when gametes are formed.
28. The phenotype of an organism
a. represents its genetic composition. b. is the physical appearance of a trait. c. occurs only in dominant pure
organisms. d. cannot be seen.
29. Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represents a genotype of a pea plant
that is homozygous dominant for tallness?
a. T b. TT c. Tt d. tt
30. Which statement describes the chromosome shown in Figure 5.2?
a. It is made up of two histones. b. It is made up of two chromatids. c. It is made up of two centromeres. d. It is
made up of two telomeres.
In humans, having freckles (F) is dominant to not having freckles (f). The inheritance of these
traits can be studied using a Punnett square similar to the one shown below.
31. Refer to the illustration above. The child represented in box 1 in the Punnett square would
a. be homozygous for freckles. b. have an extra freckles chromosome. c. be heterozygous for freckles. d. not
have freckles.
32. Refer to the illustration above. The parents shown in the Punnett square could have children with a phenotype
ratio of
a. 1:2:1. b. 4:0. c. 3:1. d. 2:2.
33. What is the expected genotypic ratio resulting from a homozygous dominant  heterozygous monohybrid cross?
a. 1:0 b. 1:1 c. 1:2:1 d. 1:3:1
34. Which of the following is true of malignant tumors?
a. They do not require treatment. b. They are easily removed through surgery. c. They can cause tumors in other
parts of the body. d. They contain cells that stay clustered together.
35. One difference between a cancer cell and a normal cell is that
a. cancer cells divide uncontrollably. b. normal cells divide uncontrollably. c. cancer cells cannot make copies of
DNA. d. normal cells cannot make copies of DNA.
36. Which of the following cell types is diploid?
a. ovum (egg) b. sex cell c. somatic cell d. gamete
37. During interphase a cell grows, duplicates organelles, and
a. copies DNA. b. divides the nucleus. c. divides the cytoplasm. d. produces a new cell.
38. Why do skin cells divide more quickly than those in the liver?
a. They are much smaller cells. b. They have fewer chromosomes. c. They need much more surface area.
d. They undergo more wear and tear.
39. Meiosis produces cells with how many chromosomes?
a. 44 b. 22 c. 46 d. 23
40. In a genotype for plant height, such as Tt, what does each letter represent?
a. one genome b. one gene c. one allele d. one gamete
41. A couple has two children, both of whom are boys. What is the chance that the parents' next child will be a boy?
a. 0% b. 50% c. 25% d. 75%
42. A child is diagnosed with a rare genetic disease. Neither parent has the disease. How might the child have inherited
the disorder?
a. The disorder is dominant and was carried by a parent. b. The disorder is recessive and carried by both parents.
c. The disorder is sex linked and inherited only from the father. d. The disorder could occur only as a mutation in
the child because neither parent had the disease.
43. Which of the following could be considered a negative effect of asexual reproduction?
a. fast reproduction b. little energy required for reproduction c. no need to find a mate d. no variation in next
generation of offspring
44. Two similar chromosomes that you inherit from your parents (one from your mother, one from your father) are
called
a. homologous chromosomes. b. sister chromatids. c. sex chromosomes. d. homozygous alleles.
45. Which event takes place during anaphase II of meiosis II?
a. Nuclear membrane breaks down. b. Spindle fibers disassemble. c. Sister chromatids separate. d. Cytoplasm
divides.
46. You would use a dihybrid cross to see probability for which of the following genetic situations?
a. brown vs. red hair color b. blue vs. brown eye color c. eye color vs. hair color d. skin color
47. If a woman is colorblind and has children with a normal male, what is the chance (%) that her son will be
colorblind?
a. 25% b. 50% c. 75% d. 100%
48. Which of the following is a dominant disorder
a. cystic fibrosis b. polydactyly c. sickle cell d. albinism
49. If a child has a recessive inherited disorder, what do you know about the pedigree of this child?
a. Their mother may be a carrier of this trait b. Their mother and father with have at least one recessive allele
c. The child is homozygous for this trait d. All of the above
50. Which type of asexual reproduction are yeast known for?
a. binary fission b. budding c. regeneration d. none of the above
Reproduction/Genetics Unit Group Quiz (Chapters 5-6)
Answer Section
TRUE/FALSE
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
T
T
T
T
F
T
T
F
F
F
T
F
F
F
F
MULTIPLE CHOICE
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
C
A
D
C
D
B
B
C
A
D
C
D
B
B
B
A
C
B
C
A
C
A
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
D
D
C
B
B
D
A
C
C
D
B
D
B