BIO BEYOND GENETIC REPLICATION UPDATED ACTUAL
EXAM QUESTIONS AND CORRECT ANSWERS
Question 1.
ANSWER
Question 2.
Which bases pair in DNA? In the simulation below, build the strand that is complementary to the
one shown. In this case, you are not replicating the strand but completing it.
ANSWER
Thymine Adenine Guanine Cytosine Cytosine Thymine Thymine Adenine Guanine Thymine
Question 3.
To continue, click on the image that you think best represents how DNA normally looks in the
cell.
ANSWER
First image
Question 4.
Looking at the images, how many chromosomes are there in a typical human?
ANSWER
46
Question 5.
What do you notice about the chromosomes in both images?
ANSWER
They come in pairs
Question 6.
Why are chromosomes a poor way to think of how DNA is normally stored?
ANSWER
DNA only looks like this during replication
1
, Question 7.
The top image, called a karyogram or karyotype, is from a human female, while the bottom one
is from a human male. What major difference do you notice?
ANSWER
The male has a set of mismatched chromosomes
Question 8.
Thinking back to what you learned about genetics, what do the colored bands on the
chromosome represent? represent?
ANSWER
Genes
Question 9.
From your exploration of DNA structure and biological macromolecules, what do you recall is
the function of DNA in the cell?
ANSWER
Information storage
Question 10.
Which of the following characteristics are different between prokaryotic and eukaryotic
chromosomes?
ANSWER
Shape
Question 11.
Where is the information stored in DNA?
ANSWER
Base sequence
Question 12.
Looking at the image to the right, what has to be done to chromatin before the information in it
can be accessed?
ANSWER
It has to be unwound to uncoiled DNA
2
EXAM QUESTIONS AND CORRECT ANSWERS
Question 1.
ANSWER
Question 2.
Which bases pair in DNA? In the simulation below, build the strand that is complementary to the
one shown. In this case, you are not replicating the strand but completing it.
ANSWER
Thymine Adenine Guanine Cytosine Cytosine Thymine Thymine Adenine Guanine Thymine
Question 3.
To continue, click on the image that you think best represents how DNA normally looks in the
cell.
ANSWER
First image
Question 4.
Looking at the images, how many chromosomes are there in a typical human?
ANSWER
46
Question 5.
What do you notice about the chromosomes in both images?
ANSWER
They come in pairs
Question 6.
Why are chromosomes a poor way to think of how DNA is normally stored?
ANSWER
DNA only looks like this during replication
1
, Question 7.
The top image, called a karyogram or karyotype, is from a human female, while the bottom one
is from a human male. What major difference do you notice?
ANSWER
The male has a set of mismatched chromosomes
Question 8.
Thinking back to what you learned about genetics, what do the colored bands on the
chromosome represent? represent?
ANSWER
Genes
Question 9.
From your exploration of DNA structure and biological macromolecules, what do you recall is
the function of DNA in the cell?
ANSWER
Information storage
Question 10.
Which of the following characteristics are different between prokaryotic and eukaryotic
chromosomes?
ANSWER
Shape
Question 11.
Where is the information stored in DNA?
ANSWER
Base sequence
Question 12.
Looking at the image to the right, what has to be done to chromatin before the information in it
can be accessed?
ANSWER
It has to be unwound to uncoiled DNA
2
