BIOS 1300 SI
SI WORKSHEET 8
SI Leader: Merrin Jeffries (email:mj983011@ohio.edu)
25 September 2014
1. A sequence of nucleotides in DNA that provides a chemical set of instructions for
making a functional protein is called a
a. codon.
b. anticodon.
c. peptide bond.
d. mRNA.
e. gene
2. Transcription takes place in the __________ of the cell.
a. cytosol
b. Golgi apparatus
c. mitochondria
d. nucleus
e. ribosomes
3. mRNA is copied from
a. DNA.
b. tRNA.
c. ribosomes.
d. polypeptide chains.
e. rRNA.
4. In the DNA molecule, adenine always pairs with
a. cytosine
b. guanine
c. uracil
d. thymine
5. The __________ on a tRNA molecule pairs with three nucleotides on a mRNA
molecule.
a. anticodon
b. codon
c. exon
d. intron
e. gene
6. Regions of DNA that do not code for portions of a protein are called
a. anticodons.
b. codons.
c. exons.
d. introns.
e. genes.
7. During the process of translation, __________ tRNA molecule(s) occupies the tRNA
binding site(s) on a ribosome.
a. one
b. two
c. three
d. six
e. hundreds of
8. Part of a proprotein is cleaved off to make a functional protein. This describes
a. posttranscriptional processing.
b. posttranslational processing.
c. transcription.
d. translation.
e. mitosis.
9. Replication of DNA takes place during the
a. G0 phase
b. G1 phase.
c. G2 phase.
d. S phase.
e. M phase (mitosis).
10. During the process of DNA replication,
a. one new DNA strand is formed.
b. the production of new nucleotide strands is catalyzed by DNA ligase.
c. short segments are spliced together by DNA polymerase.
d. each new DNA molecule has one strand of nucleotides from the original DNA
and one newly synthesized strand.
e. all of these
11. By the process of mitosis in a human cell, __________ daughter cells are produced,
each of which has __________ chromosomes.
a. 2, 46
b. 2, 23
c. 4, 46
d. 4, 23
e. 4, 23
12. Which of these processes is associated with meiosis, but not mitosis?
a. DNA replication prior to division
b. cytokinesis
c. crossing over
d. prophase-metaphase-anaphase-telophase sequence
e. all of these
13. The process of meiosis
a. includes meiosis I, II, and III.
b. results in the production of sperm cells or oocytes.
c. produces 4 diploid cells.
d. produces gametes that are identical to the parent cell.
e. produces new cells for growth or tissue repair.
14. Which of these tissues has cells located in lacunae?
a. adipose
b. blood
c. bone
d. cartilage
e. both c and d
15. Which tissue possesses all of the following characteristics?
1. cells cylindrical in shape
2. striated
3. usually one nucleus per cell
4. often branched and connected by intercalated disks
5. under involuntary control
a. bone
b. nervous tissue
c. cardiac muscle
d. skeletal muscle
e. smooth muscle
16. Which of the following characteristics apply to hyaline cartilage?
1. more collagen than proteoglycans present
2. found in the trachea and bronchi
3. has many elastic fibers
4. appears glassy and translucent in the microscope
5. found between vertebrae
a. 1,2,3
b. 1,4
c. 2,4
d. 2,3,4
e. 3,4,5
17. Which type of tissue is described by the following three characteristics?
1. matrix composed almost entirely of collagen fibers
2. fibers can all be oriented in the same direction or in many different directions
3. able to withstand great pulling forces in the direction of fiber orientation
a. adipose
b. bone
c. cartilage
d. dense connective tissue
e. loose (areolar) connective tissue
18. In which of these tissues are lamellae and trabeculae found?
a. areolar connective tissue
b. bone
c. dense regular connective tissue
d. skeletal muscle
e. cartilage
19. Jimmy Flatout had an emergency appendectomy. As the surgeon cut through the
abdominal wall into the peritoneal cavity, all of these tissue types were cut EXCEPT:
a. dense irregular connective tissue.
b. pseudostratified ciliated columnar epithelium.
c. simple squamous epithelium.
d. skeletal muscle.
e. adipose tissue.