<span>A) All viral genomes contain both DNA and RNA. FALSE.
Viruses contain the smallest necessary amount of genetic information packaged in a capsule composed of proteins. Containing both DNA and RNA would be a redundancy that would unnecessarily increase the size of the virus and make it more difficult for the virus to penetrate a cell.
B) A retrovirus contains RNA. TRUE.
By definition a retrovirus contains single-stranded positive-sense RNA instead of DNA.
C) HIV contains two identical strands of DNA. FALSE.
HIV is a retrovirus and, therefore, contains RNA instead of DNA.
D) HIV contains reverse transcriptase. TRUE.
HIV is a retrovirus that contains an RNA genome. All retroviruses require reverse transcriptase to convert their genome from RNA to DNA once the virus has been entered the cell.
E) The capsid enters the host cell if the virus is enveloped. TRUE.
Viruses are to large to enter a cell by passive diffusion or active transport. The only remaining major form a transport into the cell is endocytosis, or being enveloped.
F) All RNA-containing viruses are retroviruses. FALSE.
By definition a retrovirus contains single-stranded positive-sense RNA. Viruses can contain RNA in other forms (ie double-stranded) and would, therefore, not be considered a retrovirus.
G) Enveloped viruses bud from the host cell. TRUE.
Viruses are to large to enter a cell by passive diffusion or active transport. The only remaining major form a transport into the cell is exocytosis. For a virus to exit the host cell and infect other cells, they must exit by exocytosis, or budding.</span>
<u>★ Defination:</u>
The number system or the numeral system is the system of naming or representing numbers. The number system helps to represent numbers in a small symbol set.
<u>★ Tips:</u>
The value of any digit in a number can be determined by:
• The digit
• Its position in the number
• The base of the number system
<u>★ Types of number system:</u>
There are various types of number system in mathematics. The four most common number system types are:
• Decimal number system (Base- 10)
• Binary number system (Base- 2)
• Octal number system (Base-8)
• Hexadecimal number system (Base- 16)
Answer:
JavaScript can be implemented using JavaScript statements that are placed within the HTML tag
Explanation:
Ooeration support system. OSS is IT for running a communications network.
Answer:
Page view and outline view available in "View" Tab.
Explanation:
<u>Page View:</u>
<u>There are four types of page views available in word.</u>
<u>1. Normal: </u>(Useful when we need to write more text in word)
<u>2. Web layout: </u>(Use only when we are creating a website)
<u>3. Print layout: </u>(It is used to show the left, right, top and bottom margin for printing)
<u>4. Outline View:</u> (Used to make outline of whole document)
