BIOL 4103 HW 02- Animal Form and Function- Latest Questions and Answers Study Guide: University of Houston

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




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,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?



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,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?




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, 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:




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