Biology 1407 Lab exam 1 Questions and Answers
Question 1.
In a class of twenty biology II students, ten have the recessive, chronic whining disorder.
What is the frequency of this recessive allele?
Correct Answer: q= 0.7
Question 2.
Iodine
Correct Answer: Acts as a mordant, bonding the crystal viler stain to the
exposed peptidoglycan of G+ bacteria
Question 3.
herpetologist
Correct Answer: A person who specializes in the study of reptiles and
amphibians.
Question 4.
Stage
Correct Answer: The horizontal platform used to hold a specimen.
Question 5.
Strepto
Correct Answer: Strand or single file chain
Question 6.
Will allele frequencies remain constant, generation after generation, in a population? If
not, then what is occurring to the population?
Correct Answer: Allele frequencies are able to remain constant generation to
generation if they were able to avoid evolution, if they don't remain constant,
the population is undergoing evolution.
Question 7.
Mammalogist
Correct Answer: A person who studies mammals
Question 8.
peptidoglycan cell wall
Correct Answer: Is made of both proteins and carbohydrates. This cell wall is
rigid basket-weave-like structure, strong and porous.
Question 9.
Safranin
Correct Answer: Pink stain, to colorize any unstained (G-) bacteria, pink safranin
has no effect on (G+) since they are already stained dark purple.
Page 1
, Question 10.
List four specimens that are better viewed through a dissecting microscope than a
compound light microscope.
Correct Answer: 1. Rock samples 2. Algae 3.Insects 4.Flowers
Question 11.
ornithologist
Correct Answer: A person who studies or is an expert on birds
Question 12.
revolving nosepiece
Correct Answer: The structure attached to the underside of the body tube that
holds the objectives. The nose-piece revolves to easily move between objectives
while viewing specimens
Question 13.
Diaphragm
Correct Answer: The disc-shaped structure is located under the stage and
regulates the amount of light a specimen receives. The smaller holes allow less
light, while the larger holes allow for more light to pass across a specimen.
Question 14.
Base
Correct Answer: The heaviest part of the microscope that is used as support and
stabilizes the instrument.
Question 15.
Arm
Correct Answer: The arm supports the body tube and is used as a handle to
carry most microscopes
Question 16.
antibiotic sensitivity testing
Correct Answer: the sensitivity of bacteria to a particular antibiotic is
determined by agar diffusion testing aka antibiotic sensitivity testing
Question 17.
p
Correct Answer: Dominant phenotype
Question 18.
Why is the kingdom protista no longer considered a valid kingdom?
Correct Answer: Recent discoveries of minuscule and more diverse prostits are
more closely related to plants, animals, or fungi than to other protists.
Page 2
Question 1.
In a class of twenty biology II students, ten have the recessive, chronic whining disorder.
What is the frequency of this recessive allele?
Correct Answer: q= 0.7
Question 2.
Iodine
Correct Answer: Acts as a mordant, bonding the crystal viler stain to the
exposed peptidoglycan of G+ bacteria
Question 3.
herpetologist
Correct Answer: A person who specializes in the study of reptiles and
amphibians.
Question 4.
Stage
Correct Answer: The horizontal platform used to hold a specimen.
Question 5.
Strepto
Correct Answer: Strand or single file chain
Question 6.
Will allele frequencies remain constant, generation after generation, in a population? If
not, then what is occurring to the population?
Correct Answer: Allele frequencies are able to remain constant generation to
generation if they were able to avoid evolution, if they don't remain constant,
the population is undergoing evolution.
Question 7.
Mammalogist
Correct Answer: A person who studies mammals
Question 8.
peptidoglycan cell wall
Correct Answer: Is made of both proteins and carbohydrates. This cell wall is
rigid basket-weave-like structure, strong and porous.
Question 9.
Safranin
Correct Answer: Pink stain, to colorize any unstained (G-) bacteria, pink safranin
has no effect on (G+) since they are already stained dark purple.
Page 1
, Question 10.
List four specimens that are better viewed through a dissecting microscope than a
compound light microscope.
Correct Answer: 1. Rock samples 2. Algae 3.Insects 4.Flowers
Question 11.
ornithologist
Correct Answer: A person who studies or is an expert on birds
Question 12.
revolving nosepiece
Correct Answer: The structure attached to the underside of the body tube that
holds the objectives. The nose-piece revolves to easily move between objectives
while viewing specimens
Question 13.
Diaphragm
Correct Answer: The disc-shaped structure is located under the stage and
regulates the amount of light a specimen receives. The smaller holes allow less
light, while the larger holes allow for more light to pass across a specimen.
Question 14.
Base
Correct Answer: The heaviest part of the microscope that is used as support and
stabilizes the instrument.
Question 15.
Arm
Correct Answer: The arm supports the body tube and is used as a handle to
carry most microscopes
Question 16.
antibiotic sensitivity testing
Correct Answer: the sensitivity of bacteria to a particular antibiotic is
determined by agar diffusion testing aka antibiotic sensitivity testing
Question 17.
p
Correct Answer: Dominant phenotype
Question 18.
Why is the kingdom protista no longer considered a valid kingdom?
Correct Answer: Recent discoveries of minuscule and more diverse prostits are
more closely related to plants, animals, or fungi than to other protists.
Page 2
