AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

THE GENETICS OF VIRUSES AND BACTERIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following best describes the difference between the genetic material of viruses and bacteria?
A
The genetic material of viruses is located on multiple chromosomes, while bacteria have only one.
B
The genetic material of viruses always includes both DNA and RNA, while bacteria only have DNA
C
Viruses have less genetic material and fewer genes than bacteria.
D
The genetic material of viruses is coiled, whereas the genetic material of bacteria is linear.
Explanation: 

Detailed explanation-1: -Which of the following best describes the difference between the genetic material of viruses and bacteria? The genetic material of viruses is located on multiple chromosomes, while bacteria have only one.

Detailed explanation-2: -These include: Lack membrane-bound organelles-While bacteria have a few organelles involves in metabolism and reproduction, they, like viruses, do not have membrane-bound organelles. In viruses, the nucleic acid is not contained in a nucleus as is the case with eukaryotic cells.

Detailed explanation-3: -On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.

Detailed explanation-4: -Cells have a double stranded DNA molecule and many strands of single stranded RNA as the copies. Viruses, however, can have double stranded DNA, single stranded DNA, double stranded RNA, or single stranded RNA. They convert RNA to DNA and then back to RNA to make proteins, which does not happen inside cells.

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