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17 terms

SCMH 1010 Chapter 23

STUDY
PLAY
Which of the following disease is not hereditary?
a. Sickle-cell anemia

b. Cystic fibrosis

c. Diabetes

d. Arthritis

e. All of the above are hereditary
e. All of the above are hereditary
Which genetic characteristics did Gregor Mendel omit from his studies?
a. Hairy toe knuckles

b. Pod texture

c. Flower color

d. Height

e. Hybrids
a. Hairy toe knuckles
What is the cellular function of deoxyribonucleic acid?
a. Provides structure to the nucleus

b. Governs all chemical functions

c. Carries inheritance information

d. Serves as an antibiotic for bacteria

e. B and C
e. B and C
Transcription of DNA
a. Supplies information that runs cell chemistry

b. Divides the cell through mitosis

c. Determines the genetic code

d. Destroys extra nucleotides

e. All of the above
a. Supplies information that runs cell chemistry
Which statement about viruses is false?
a. Viruses kill the cell

b. Viruses are RNA segments coated with protein

c. Viruses can metabolize

d. Viruses are DNA segments coated with protein

e. Viruses use the cell's enzymes
c. Viruses can metabolize
Which of the following does not have to contain a DNA molecule?
a. Gene

b. Chromosome

c. Cell

d. Virus

e. Zygote
d. Virus
Which does not follow Mendel's work?
a. All organisms employ the same genetic code

b. Traits can either be dominant or recessive

c. Units of inheritance pass traits from parents to offspring

d. Both parents contribute equally to the traits of the offspring

e. Tallness is dominant over shortness in pea plants
a. All organisms employ the same genetic code
The "double helix" of DNA refers to the
a. Hydrogen bonding of the nucleotides

b. Twisting of the ladder like double strands of bases

c. Hexagon shape of the carbon atoms

d. Fact that DNA is at the core of all medical studies

e. Unique chemistry of the RNA bases
b. Twisting of the ladder like double strands of bases
Which of the following is not a nucleotide?
a. Recessive gene

b. Phosphate group

c. Adenine

d. Sugar

e. Guanine
a. Recessive gene
Which of the following statements about DNA is false?
a. DNA molecules are made of smaller molecules

b. Every living cell on earth contains DNA molecules

c. DNA strands contain alternating sugar and phosphate molecules

d. RNA is the mirror opposite of DNA

e. Hydrogen bonds join the 2 sides of the DNA ladder
d. RNA is the mirror opposite of DNA
What did Mendel's genetic model predict?
a. Parents are equally important in the transfer of genetic information

b. The male contributes most of the dominant traits

c. The female contributes most of the dominant traits

d. Physical traits are expressed in random proportion

e. Mental traits are expressed in a ratio of 9:3:3:1
a. Parents are equally important in the transfer of genetic information
Which of these processes precedes fertilization?
a. Oxidation

b. Respiration

c. Mitosis

d. Meiosis

e. Mutation
d. Meiosis
In a cell, the process of transcription
a. Transfers DNA information form the nucleus to the rest of the cell

b. Uses RNA to carry genetic information

c. Relays instructions to regulate the cell chemistry

d. All of the above

e. Only 2 of the above
d. All of the above
What is a codon?
a. The genetic code

b. A set of 3 bases on the mRNA

c. A set of 3 bases on the tRNA

d. An amino acid string

e. A protein
b. A set of 3 bases on the mRNA
Where does the protein synthesis in a cell actually take place?
a. tRNA

b. mRNA

c. Nucleus

d. Ribosome

e. Codon
d. Ribosome
What is a gene?
a. A particular stretch of DNA located on a chromosome

b. Several chromosomes that control physical features

c. A combination of tRNA, mRNA, and rRNA

d. The hydrogen bonds of the DNA base pairs

e. An amino acid string
a. A particular stretch of DNA located on a chromosome
Which of the following can cause a mutation?
a. A change in the RNA of the parent

b. Damage to the cell membrane of the parent

c. An alternation of DNA in a parent's egg or sperm

d. Diseases such as cancer or hypertension

e. Infertility in older parents
c. An alternation of DNA in a parent's egg or sperm