Unit 3 Genetics Onlevel Exam

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35 questions

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SB2b

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Draggable item		Corresponding Item
C		substrate (reactants)
E		enzyme
B		enzyme-substrate complex
A		product

Unit 3 Genetics Onlevel Exam

Unit 3 Genetics Onlevel Exam

Resistance to antibiotics results from variations in the genetic code of Streptococcus pneumoniae. Which type of molecule encodes genetic information in Streptococcus pneumoniae?

Look at the DNA sequence: GAA-TTC-GCA What do the G and A represent in the DNA sequence?

Because of base pairing in DNA, the percentage of

In human DNA, there is approximately 30% adenine. What percentage of this DNA will be cytosine?

What is the monomer of a nucleic acid such as DNA and RNA?

DNA replication is semiconservative and therefore results in two DNA molecules

In 1976, the enzyme DNA helicase was discovered. DNA helicase breaks bonds between nitrogenous bases.

Which statement BEST describes how the discovery of DNA helicase furthered the understanding of DNA replication?

The cellular process of creating two new DNA molecules from one original copy is called replication. Which statement is the BEST description of this process?

Four different segments of a DNA molecule are represented below.

There is an error in the DNA of which molecule?

Some events that take place during the synthesis of a specific protein are listed below. The correct order of these events is which of the following:

The first step should be at the top

The DNA code for normal hemoglobin contains the following segment: TGC-GGA-CTC-CTC Which of these is the mRNA code for this segment of DNA?

Which description explains the role of the tRNA in the process shown in the diagrams above?

A scientist put nucleotide chains of UUUUUU in a test tube under conditions allowing protein synthesis. Soon the test tube is full of polypeptide chains composed only of the amino acid phenylalanine. What does this experiment indicate?

The sequence of DNA below is part of a gene. How many amino acids are coded for by the segment shown below? ATCAGCGCTGGC

The table below illustrates a mutation that occurred during DNA replication. If your DNA went from:
What type of mutation occurred?

Which of the following would most likely cause a mutation?

After conducting several tests, a scientist determines that the nucleic acid they are studying has the following characteristics:
What is the BEST conclusion the scientists can make based on the observations above?

A biologist ground up some plant cells and then purified the mixture. She obtained some organelles from the mixture in the test tube. Upon further analysis, it was found that the organelles took up carbon dioxide (CO2) and released oxygen (O2). The organelles are most likely

Which of the following would indicate that facilitated diffusion was taking place?

During DNA replication, helicase is used to break the hydrogen bonds between nitrogenous bases while DNA polymerase is used to assemble the nucleotides on the new DNA strand. Helicase and DNA polymerase are both examples of

Students are investigating DNA replication in a variety of cells. The record the following observations.
Based on these results, what type of cell are the students studying?

Match the correct name to each letter shown in the picture above.

Based on the data, this enzyme functions best at what temperature and pH?

Which of the four molecules is DNA, based on the table above?

Which processes shown in this diagram occur in the nucleus?

Using the following mRNA template, AUG-CAU-UGC-GAC-UAA, what would be the amino acid sequence coded for by the mRNA?
(First amino acids at the top)

Using the codon chart above and your knowledge of biology, determine the best explanation as to what went wrong when a student tried to transcribe and translate the codons below: DNA: TAC TCG CCC
mRNA: AUG AGC GGG
amino acids: Met-Ser-Pro

Using the codon chart above, which of the following changes would be expected if a CAUUUG sequence of bases mutated to CAGUUG?

The donor of which sample is most closely related to the donor of the unknown sample?

According to the graph, what is the relationship between the rate of fermentation and temperature?

Which statement could explain the data shown in the graph?

Choose the best argument using evidence for why a fever of 100.2 degrees would not cause an enzyme to cease function.

Unit 3 Genetics Onlevel Exam

Unit 3 Genetics Onlevel Exam

Resistance to antibiotics results from variations in the genetic code of Streptococcus pneumoniae. Which type of molecule encodes genetic information in Streptococcus pneumoniae?

Look at the DNA sequence: GAA-TTC-GCA What do the G and A represent in the DNA sequence?

Because of base pairing in DNA, the percentage of

In human DNA, there is approximately 30% adenine. What percentage of this DNA will be cytosine?

What is the monomer of a nucleic acid such as DNA and RNA?

DNA replication is semiconservative and therefore results in two DNA molecules

In 1976, the enzyme DNA helicase was discovered. DNA helicase breaks bonds between nitrogenous bases. Which statement BEST describes how the discovery of DNA helicase furthered the understanding of DNA replication?

The cellular process of creating two new DNA molecules from one original copy is called replication. Which statement is the BEST description of this process?

Four different segments of a DNA molecule are represented below. There is an error in the DNA of which molecule?

Some events that take place during the synthesis of a specific protein are listed below. The correct order of these events is which of the following:The first step should be at the *top*

The DNA code for normal hemoglobin contains the following segment: TGC-GGA-CTC-CTC Which of these is the mRNA code for this segment of DNA?

Which description explains the role of the tRNA in the process shown in the diagrams above?

A scientist put nucleotide chains of UUUUUU in a test tube under conditions allowing protein synthesis. Soon the test tube is full of polypeptide chains composed only of the amino acid phenylalanine. What does this experiment indicate?

The sequence of DNA below is part of a gene. How many amino acids are coded for by the segment shown below? ATCAGCGCTGGC

The table below illustrates a mutation that occurred during DNA replication. If your DNA went from: What type of mutation occurred?

Which of the following would most likely cause a mutation?

After conducting several tests, a scientist determines that the nucleic acid they are studying has the following characteristics: What is the BEST conclusion the scientists can make based on the observations above?

A biologist ground up some plant cells and then purified the mixture. She obtained some organelles from the mixture in the test tube. Upon further analysis, it was found that the organelles took up carbon dioxide (CO2) and released oxygen (O2). The organelles are most likely

Which of the following would indicate that facilitated diffusion was taking place?

During DNA replication, helicase is used to break the hydrogen bonds between nitrogenous bases while DNA polymerase is used to assemble the nucleotides on the new DNA strand. Helicase and DNA polymerase are both examples of

Students are investigating DNA replication in a variety of cells. The record the following observations. Based on these results, what type of cell are the students studying?

Match the correct name to each letter shown in the picture above.

Based on the data, this enzyme functions best at what temperature and pH?

Which of the four molecules is DNA, based on the table above?

Which processes shown in this diagram occur in the nucleus?

Using the following mRNA template, AUG-CAU-UGC-GAC-UAA, what would be the amino acid sequence coded for by the mRNA? (First amino acids at the top)

Using the codon chart above and your knowledge of biology, determine the best explanation as to what went wrong when a student tried to transcribe and translate the codons below: DNA: TAC TCG CCCmRNA: AUG AGC GGGamino acids: Met-Ser-Pro

Using the codon chart above, which of the following changes would be expected if a CAUUUG sequence of bases mutated to CAGUUG?

The donor of which sample is most closely related to the donor of the unknown sample?

According to the graph, what is the relationship between the rate of fermentation and temperature?

Which statement could explain the data shown in the graph?

Choose the best argument using evidence for why a fever of 100.2 degrees would not cause an enzyme to cease function.

In 1976, the enzyme DNA helicase was discovered. DNA helicase breaks bonds between nitrogenous bases.

Which statement BEST describes how the discovery of DNA helicase furthered the understanding of DNA replication?

Four different segments of a DNA molecule are represented below.

There is an error in the DNA of which molecule?

Some events that take place during the synthesis of a specific protein are listed below. The correct order of these events is which of the following:

The first step should be at the top

The table below illustrates a mutation that occurred during DNA replication. If your DNA went from:
What type of mutation occurred?

After conducting several tests, a scientist determines that the nucleic acid they are studying has the following characteristics:
What is the BEST conclusion the scientists can make based on the observations above?

Students are investigating DNA replication in a variety of cells. The record the following observations.
Based on these results, what type of cell are the students studying?

Using the following mRNA template, AUG-CAU-UGC-GAC-UAA, what would be the amino acid sequence coded for by the mRNA?
(First amino acids at the top)

Using the codon chart above and your knowledge of biology, determine the best explanation as to what went wrong when a student tried to transcribe and translate the codons below: DNA: TAC TCG CCC
mRNA: AUG AGC GGG
amino acids: Met-Ser-Pro