1|Page
Bio Sci 93 Study Exam Questions
Correct Answers New Update (Verified
A+ Pass)
What does it mean to say that a gene is expressed? - ✔✔Information in DNA is used to make a protein
How many different kinds of nucleotides does DNA contain? - ✔✔4: A, C, T, G
Why doesn't a skin cell make crystallin protein? Select all that apply
-Skin cells have the crystallin gene but do not express it.
-Skin cells use different DNA for their genes.
-Skin cells do not need crystallin for their function.
-The crystallin gene is not present in skin cells. - ✔✔-Skin cells have the crystallin gene but do not express
it
- Skin cells do not need crystallin for their function.
In the course of a conversation, you observe that three of your friends like horror movies. Horror movies
happen to be your favorite type of movie as well. You also know that all of these friends were born in the
same week that you were, even in the same year.
An astrology-loving friend hypothesizes that people born in that week like horror movies more than
other genres of movies. You decide to use the scientific method to test this hypothesis.
Katelyn Whitman© 2025, All Rights Reserved.
, 2|Page
What should you do next? - ✔✔Perform experiments to test your hypothesis.
Which of the following experiments would best test your hypothesis? - ✔✔Find other people born in the
same week and ask them what their favorite type of movie is
What should you do after your experiment? - ✔✔Refine your hypothesis
Which example illustrates a property that emerges at the community level? - ✔✔Metabolic cooperation
among many species of prokaryotic cells forms a biofilm that allows bacterial colonies to transport
nutrients and wastes. Biofilms may damage industrial equipment or cause tooth decay.
Select the most accurate statement about the interaction between a tree and its physical environment. -
✔✔A tree and its physical environment alter each other
The universal genetic language of DNA is common to virtually all organisms on Earth, however diverse.
What is the best explanation for this fact? - ✔✔All living things share a common genetic language of
DNA because they share a common ancestry.
1 meter = _____ centimeters - ✔✔100
Which of the following choices correctly matches a tool and its proper application? See Concept 6.1 (Page)
- ✔✔Cell fractionation to study the function of specific organelles
DNA is composed of building blocks called _____. - ✔✔nucleotides
In eukaryotic cells DNA has the appearance of a _____. - ✔✔Double helix
Two - ✔✔di-
not - ✔✔non-
many - ✔✔poly-
with or together with - ✔✔co-
Katelyn Whitman© 2025, All Rights Reserved.
Bio Sci 93 Study Exam Questions
Correct Answers New Update (Verified
A+ Pass)
What does it mean to say that a gene is expressed? - ✔✔Information in DNA is used to make a protein
How many different kinds of nucleotides does DNA contain? - ✔✔4: A, C, T, G
Why doesn't a skin cell make crystallin protein? Select all that apply
-Skin cells have the crystallin gene but do not express it.
-Skin cells use different DNA for their genes.
-Skin cells do not need crystallin for their function.
-The crystallin gene is not present in skin cells. - ✔✔-Skin cells have the crystallin gene but do not express
it
- Skin cells do not need crystallin for their function.
In the course of a conversation, you observe that three of your friends like horror movies. Horror movies
happen to be your favorite type of movie as well. You also know that all of these friends were born in the
same week that you were, even in the same year.
An astrology-loving friend hypothesizes that people born in that week like horror movies more than
other genres of movies. You decide to use the scientific method to test this hypothesis.
Katelyn Whitman© 2025, All Rights Reserved.
, 2|Page
What should you do next? - ✔✔Perform experiments to test your hypothesis.
Which of the following experiments would best test your hypothesis? - ✔✔Find other people born in the
same week and ask them what their favorite type of movie is
What should you do after your experiment? - ✔✔Refine your hypothesis
Which example illustrates a property that emerges at the community level? - ✔✔Metabolic cooperation
among many species of prokaryotic cells forms a biofilm that allows bacterial colonies to transport
nutrients and wastes. Biofilms may damage industrial equipment or cause tooth decay.
Select the most accurate statement about the interaction between a tree and its physical environment. -
✔✔A tree and its physical environment alter each other
The universal genetic language of DNA is common to virtually all organisms on Earth, however diverse.
What is the best explanation for this fact? - ✔✔All living things share a common genetic language of
DNA because they share a common ancestry.
1 meter = _____ centimeters - ✔✔100
Which of the following choices correctly matches a tool and its proper application? See Concept 6.1 (Page)
- ✔✔Cell fractionation to study the function of specific organelles
DNA is composed of building blocks called _____. - ✔✔nucleotides
In eukaryotic cells DNA has the appearance of a _____. - ✔✔Double helix
Two - ✔✔di-
not - ✔✔non-
many - ✔✔poly-
with or together with - ✔✔co-
Katelyn Whitman© 2025, All Rights Reserved.
