Questions

Q:

Which of the following statements is most accurate regarding infection with parvovirus B19?

A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors B) Parvovirus B19 can cause hydrops fetalis via transplacental infection of a fetus in a seropositive mother
C) Parvovirus B19 can be diagnosed by detection of viral RNA using PCR or hybridization assays D) Parvovirus B19 replicates in the host cell nucleus utilizing a virally encoded DNA polymerase to create a double- stranded DNA intermediate
 
Answer & Explanation Answer: A) Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors

Explanation:

Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors.

 

a. Parvovirus B19 binds preferentially to the erythrocyte blood group P antigen on erythroid precursor cells.

Answers B, C, D are incorrect:

b. after entry the single-stranded viral DNA genome is transported to the cell nucleus where the host DNA polymerase synthesizes the complimentary DNA strand.

c. Parvovirus B19 infection can be diagnosed by direct detection of viral DNA not RNA.

d. the fetus of a seropositive mother is protected from infection by maternal circulating antibodies.

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Filed Under: Biology
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Q:

Which of the following is a characteristic of the Ascomycota?

A) Sac formation B) Zygospore formation
C) Basidium formation D) All of the above
 
Answer & Explanation Answer: A) Sac formation

Explanation:

Ascomycota is a division or phylum of the kingdom Fungi that, together with the Basidiomycota, form the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes. 

 

Hence, Sac formation is a characteristic of the Ascomycota fungi.

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Filed Under: Biology
Exam Prep: AIEEE
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Q:

Group of 4 is called as

A) Septory B) Qintet
C) Hexet D) Quartet
 
Answer & Explanation Answer: D) Quartet

Explanation:
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Filed Under: General Awareness
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Q:

Which of these liquids has the highest viscosity?

A) Milk B) Syrup
C) Pineapple juice D) Water
 
Answer & Explanation Answer: B) Syrup

Explanation:

The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness".

Here in the given options, syrup has the highest viscosity.

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Filed Under: Physics
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Q:

Project Risk Management - Processes

Describe the Inputs, Tools and Techniques , Outputs included in the Risk Response Planning?

Answer

I. Inputs



  • Risk management plan

  • Risk register


II. Tools and Techniques



  • Strategies for negative risk or threats

  • Strategies for positive risks or opportunities

  • Strategies for both threats and opportunities

  • Contingent response strategy


III. Outputs



  • Risk register (updates)

  • Project management plan (updates)

  • Risk - related contractual agreements

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Q:

What is time-stamping?

Answer

It is a technique proposed by Lamport, used to order events in a distributed system without the use of clocks. This scheme is intended to order events consisting of the transmission of messages. Each system 'i' in the network maintains a counter Ci. Every time a system transmits a message, it increments its counter by 1 and attaches the time-stamp Ti to the message. When a message is received, the receiving system 'j' sets its counter Cj to 1 more than the maximum of its current value and the incoming time-stamp Ti. At each site, the ordering of messages is determined by the following rules: For messages x from site i and y from site j, x precedes y if one of the following conditions holds....(a) if Ti

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Q:

What is the difference between the following declarations?

extern int fun();

int fun();

Answer

There is no difference except for the fact that the first one gives a hint that the function fun() is probably in another source file.

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Subject: Programming

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Q:

What is the main motive behind dealer incentives?

A) encouraging the maximum number of sales of the manufacturers products B) to maintain a permanent deal
C) maintaining good dealer-manufacturer relationships D) ensuring that the customer gets the best possible deal
 
Answer & Explanation Answer: A) encouraging the maximum number of sales of the manufacturers products

Explanation:

The main motive behind dealer incentives is to give the products at some low price for the dealers who take the products in bulk and maintain good selling of these products.

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Filed Under: Business Awareness
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