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BIO 30 (SJSU) Exam 1 Questions and Verified
Answers
If protein is the heritable material, how many unique sequences of 10 amino
acids are possible?
Ans: 20¹⁰
If DNA is the heritable material, how many unique 10 DNA base pair sequences
are possible?
Ans: 4¹⁰
Which biomolecule can encode the most unique sequences for a given length?
Ans: Protein
Based on Griffith's experiments, where can you conclude the heritable material is
located?
Ans: Loosely attached to the cell wall/membrane
Which of the following could be used as a negative control in the Avery
experiments?
Ans: Buffer solution only
Your group is assigned to repeat Avery's experiments in BIOL 30 lab. You are
given plates of R cells and tubes of the extracted S factor. In which of the
following cases would you see the R cells be transformed into S cells.
Ans: All of the above EXCEPT when you add S factor + DNAase
Based on the results of Avery's experiments, which biomolecule most likely
constitutes the heritable material?
Ans: DNA
In Table 1.2, which biomolecule was more likely to be found inside the cell?
Ans: DNA
Which DNA base pairs contain two rings?
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Ans: Adenine and Guanine
The nitrogenous bases are held together by which kind of bonds?
Ans: Hydrogen bonds
What method of replication did Meselson & Stahl determine was used in DNA
replications?
Ans: Semi-conservative
If DNA replication was conservative, after one generation how many bands in the
Meselson & Stahl experiments would you expect?
Ans: 2
The following image is of DNA bands following 2.5 generations as well as a
quantification of the density of both bands. Which of the bands contains the most
DNA?
Ans: A (thicker, darker band)
In an adult, the gene encoding the fetal hemoglobin protein is most likely to be
Ans: Hypermethylated
What characteristics are important in the type of RNA that serves as the template
for protein translation?
Ans: A and C only (Huge turnover rate and variety sizes)
Which form(s) of RNA are the most stable / long-lasting?
Ans: rRNA
You set up an experiment with yeast grown on lots of food (glucose) vs. very little
glucose. Would you expect to see differences in the amount and make-up of tRNA
between the two groups?
Ans: No
When comparing RNA from yeast and humans, which type of RNA do you expect
to be the most similar?
Ans: rRNA
BIO 30 (SJSU) Exam 1 Questions and Verified
Answers
If protein is the heritable material, how many unique sequences of 10 amino
acids are possible?
Ans: 20¹⁰
If DNA is the heritable material, how many unique 10 DNA base pair sequences
are possible?
Ans: 4¹⁰
Which biomolecule can encode the most unique sequences for a given length?
Ans: Protein
Based on Griffith's experiments, where can you conclude the heritable material is
located?
Ans: Loosely attached to the cell wall/membrane
Which of the following could be used as a negative control in the Avery
experiments?
Ans: Buffer solution only
Your group is assigned to repeat Avery's experiments in BIOL 30 lab. You are
given plates of R cells and tubes of the extracted S factor. In which of the
following cases would you see the R cells be transformed into S cells.
Ans: All of the above EXCEPT when you add S factor + DNAase
Based on the results of Avery's experiments, which biomolecule most likely
constitutes the heritable material?
Ans: DNA
In Table 1.2, which biomolecule was more likely to be found inside the cell?
Ans: DNA
Which DNA base pairs contain two rings?
, Page | 2
Ans: Adenine and Guanine
The nitrogenous bases are held together by which kind of bonds?
Ans: Hydrogen bonds
What method of replication did Meselson & Stahl determine was used in DNA
replications?
Ans: Semi-conservative
If DNA replication was conservative, after one generation how many bands in the
Meselson & Stahl experiments would you expect?
Ans: 2
The following image is of DNA bands following 2.5 generations as well as a
quantification of the density of both bands. Which of the bands contains the most
DNA?
Ans: A (thicker, darker band)
In an adult, the gene encoding the fetal hemoglobin protein is most likely to be
Ans: Hypermethylated
What characteristics are important in the type of RNA that serves as the template
for protein translation?
Ans: A and C only (Huge turnover rate and variety sizes)
Which form(s) of RNA are the most stable / long-lasting?
Ans: rRNA
You set up an experiment with yeast grown on lots of food (glucose) vs. very little
glucose. Would you expect to see differences in the amount and make-up of tRNA
between the two groups?
Ans: No
When comparing RNA from yeast and humans, which type of RNA do you expect
to be the most similar?
Ans: rRNA
