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Flashcards in Lab Quiz 1 Deck (10):
1

What does it mean to say that a trait (ie characteristic) is inherited?
a. It gives the offspring an evolutionary benefit
b. It exists in all organisms of a species
c. It can be passed from parent to offspring
d. It is necessary for the survival of an organism

c. It can be passed from parent to offspring

2

Which statement does not have to be true in order for evolution to take place?
Select one:
a. Characteristics are inherited
b. Characteristics change over time
c. Characteristics benefit the organism’s survival or reproduction

c. Characteristics benefit the organism’s survival or reproduction

3

An organism's genotype is its _______. An organism's phenotype is its _______.
Select one:
a. Collection of genes. Physical qualities
b. Physical qualities. Collection of genes
c. Amino acid sequence. DNA sequence
d. DNA sequence. Amino acid sequence

a. Collection of genes. Physical qualities

4

Suppose a specific region of DNA in the human genome is found to be responsible for eye color. Two variations are discovered, which have slightly differing DNA sequences. The region of DNA responsible for eye color is called a ______, whereas, each variation is a different ______
Select one:
a. Allele. Gene.
b. Gene. Allele
c. Trait. Allele
d. Allele. Trait

b. Gene. Allele

5

Which of the following is always the cause for differences among alleles?
Select one:
a. genetic drift
b. evolution
c. gene flow
d. mutation

d. mutation

6

Suppose we breed two brown rabbits with each other, resulting in one brown offspring and one white offspring. We then breed two brown birds with each other, resulting in two brown offspring. Using just the information given, in which organism does the “color” trait have greater heritability?
Select one:
a. The rabbits
b. The birds
c. They are the same
d. Neither species has any heritability

b. the birds

7

Which of the following is not required for natural selection to occur?
Select one:
a. Heritable variation
b. Large population of the species
c. Different phenotypes with different fitness

b. Large population of the species

8

Which of the following is required for gene flow, but not for genetic drift?
Select one:
a. Novel mutation
b. Differences in fitness
c. Migration of individuals
d. Natural selection

c. Migration of individuals

9

In this week’s lab, we are experimenting with E coli. Which of the following is a legitimate reason for us to use E coli rather than another bacterial species for this lab?
Select one:
a. They reproduce rapidly
b. They are big and easy to see
c. They cannot become resistant to antibiotics
d. They have a small amount of DNA in their genome

a. They reproduce rapidly

10

In lab, we will expose the E. coli to the antibiotic triclosan. How does triclosan kill bacteria?


Select one:
a. It inhibits cell wall synthesis, leading to cell lysis (destruction)
b. It binds to the 30S ribosomal subunit, inhibiting protein synthesis
c. It inhibits an enzyme called cyclooxygenase
d. It disrupts cell membranes and inhibits fatty acid synthesis

d. It disrupts cell membranes and inhibits fatty acid synthesis

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