HW 02: Animal Form & Function 5/13/15 4:53 PM
HW 02: Animal Form & Function
Due: 11:59pm on Sunday, March 22, 2015
You will receive no credit for items you complete after the assignment is due. Grading Policy
Chapter 46 Question 5
Part A
During human gestation, rudiments of all organs develop
ANSWER:
in the second trimester.
in the first trimester.
while the embryo is in the oviduct.
in the third trimester.
during the blastocyst stage.
Correct
Activity: HIV Reproductive Cycle
Click here to complete this activity.
Then answer the questions.
Part A
The genetic material of HIV consists of _____.
ANSWER:
none of the above
single-stranded RNA
double-stranded RNA
double-stranded DNA
single-stranded DNA
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 1 of 300
,HW 02: Animal Form & Function 5/13/15 4:53 PM
Correct
The genetic material of HIV consists of two molecules of single-stranded RNA.
Part B
Which of these binds to receptor molecules on the host cell membrane?
ANSWER:
E
D
B
A
C
Correct
Glycoproteins on the viral envelope recognize and bind to receptors on the host cell.
Part C
What is the function of reverse transcriptase?
ANSWER:
catalyzing the formation of RNA from a polypeptide template
catalyzing the formation of RNA from a DNA template
catalyzing the formation of a polypeptide from a RNA template
catalyzing the formation of DNA from a RNA template
catalyzing the formation of DNA from a polypeptide template
Correct
This is the function of reverse transcriptase
Part D
What is the source of a viral envelope?
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 2 of 300
,HW 02: Animal Form & Function 5/13/15 4:53 PM
ANSWER:
provirus
host cell membrane
viral glycoproteins
prophages
host cell DNA
Correct
The viral envelope is derived from host cell membrane.
Part E
Which of these is reverse transcriptase?
ANSWER:
D
E
B
C
A
Correct
This is reverse transcriptase.
Part F
Which of these is the viral genome?
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 3 of 300
, HW 02: Animal Form & Function 5/13/15 4:53 PM
ANSWER:
D
A
E
B
C
Correct
HIV is a RNA virus.
Part G
To view the animation, click here. Then click Start on the image to start the animation.
What enzyme is responsible for the process seen here?
ANSWER:
DNA ligase
DNA polymerase
reverse transcriptase
endonuclease
RNA polymerase
Correct
Reverse transcriptase catalyzes the formation of DNA from a RNA template.
Part H
Double-stranded viral DNA is incorporated into a host cell as a _____.
ANSWER:
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 4 of 300
HW 02: Animal Form & Function
Due: 11:59pm on Sunday, March 22, 2015
You will receive no credit for items you complete after the assignment is due. Grading Policy
Chapter 46 Question 5
Part A
During human gestation, rudiments of all organs develop
ANSWER:
in the second trimester.
in the first trimester.
while the embryo is in the oviduct.
in the third trimester.
during the blastocyst stage.
Correct
Activity: HIV Reproductive Cycle
Click here to complete this activity.
Then answer the questions.
Part A
The genetic material of HIV consists of _____.
ANSWER:
none of the above
single-stranded RNA
double-stranded RNA
double-stranded DNA
single-stranded DNA
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 1 of 300
,HW 02: Animal Form & Function 5/13/15 4:53 PM
Correct
The genetic material of HIV consists of two molecules of single-stranded RNA.
Part B
Which of these binds to receptor molecules on the host cell membrane?
ANSWER:
E
D
B
A
C
Correct
Glycoproteins on the viral envelope recognize and bind to receptors on the host cell.
Part C
What is the function of reverse transcriptase?
ANSWER:
catalyzing the formation of RNA from a polypeptide template
catalyzing the formation of RNA from a DNA template
catalyzing the formation of a polypeptide from a RNA template
catalyzing the formation of DNA from a RNA template
catalyzing the formation of DNA from a polypeptide template
Correct
This is the function of reverse transcriptase
Part D
What is the source of a viral envelope?
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 2 of 300
,HW 02: Animal Form & Function 5/13/15 4:53 PM
ANSWER:
provirus
host cell membrane
viral glycoproteins
prophages
host cell DNA
Correct
The viral envelope is derived from host cell membrane.
Part E
Which of these is reverse transcriptase?
ANSWER:
D
E
B
C
A
Correct
This is reverse transcriptase.
Part F
Which of these is the viral genome?
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 3 of 300
, HW 02: Animal Form & Function 5/13/15 4:53 PM
ANSWER:
D
A
E
B
C
Correct
HIV is a RNA virus.
Part G
To view the animation, click here. Then click Start on the image to start the animation.
What enzyme is responsible for the process seen here?
ANSWER:
DNA ligase
DNA polymerase
reverse transcriptase
endonuclease
RNA polymerase
Correct
Reverse transcriptase catalyzes the formation of DNA from a RNA template.
Part H
Double-stranded viral DNA is incorporated into a host cell as a _____.
ANSWER:
https://session.masteringbiology.com/myct/assignmentPrintView?displayMode=studentView&assignmentID=3451230 Page 4 of 300
