1. Which of the following is true for viruses? a. They are cells. b. They are ac
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1. Which of the following is true for viruses? a. They are cells. b. They are acellular. c. They contain mitochondria d. They contain nuclei e. They reproduce independently 2. In the extracellular state a virus is called a: a. Viroid b. Virulent c. Vituperative d. Virilee capsid 3. The nucleic acid and capsid in a virus together constitute the: d. Envelocapsi a. Capsomer b. Cap c. Nucleocapsid 4. The viral envelope is: a. Helical, polyhedral or complex. b. Made solely of adipose tissue. c. Made of silicon. d. Acquired from the host. 5. Which of the following is not true regarding viral classification? a. Viruses are usually classified according to their inclusions. b. Viruses are classified according to their size. c. Viruses are classified according to their shapes d. Viruses are classified according to the presence of an envelope e. Viruses are classified according to their nucleic acidsExplanation / Answer
Hi Answer;
Q. 1 Which of the following is true for viruses?
Answer: Option B. They are acellular
Explanation: Viruses didn’t contain any cell they are acellular in nature and very much smaller than cells. Even they are not generated from any cell. They are considered in between the living and non living organisms.
Q.2. In the extracellular state, a virus is called a
Answer: Option e. Capsid
Explanation: The extracellular state of the virus is the state before the entering the cell. This state is known as Virion. In this virion, state virus is enclosed in a protein coat known as the capsid. Presently in options there is no Virion is given, I think instead of virion they called it capsid because virion is covered inside the capsid.
Q.3. The nucleic acid and capsid in a virus together constitute the
Answer: Option C. Nucleocapsid
Explanation: The structure of the virus have nucleic acid which surrounded by the protein coat known as the capsid. This complex structure is called Nucleocapsid
Q.4. The viral envelope is
Answer: Option. A. Helical, polyhedral or complex
Explanation: The viral envelope is made from the proteins of host cell membranes but also have some viral glycoproteins. It is helical, polyhedral or complex in nature and protects the virus from host immune system as well as protect the viral genetic material.
Q.5 Which of the following is not true regarding viral classification
Answer: Option A. viruses are usually classified according to their inclusions
Explanation: Virus are classified on the phenotypic characteristics, nucleic acid type, the presence of an envelope, according to their shape and size only.
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