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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
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Rearrange the parts of the sentence in correct order.
 
Gender inequality has
 
P :it reduces economic growth
Q :development goals as
R :adverse impact on

A) RPQ  B) RQP
C) PRQ D) QPR
 
Answer & Explanation Answer: B) RQP

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Where are the taste receptors located?

A) epiglottis B) upper esophagus
C) tip of the tongue D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Five basic tastes are :

salty,

sweet,

bitter,

sour, and

umami.

Where_are_the_taste_receptors_located1551955329.jpg image

The taste receptors are located all over in the mouth around paillae structures.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

What is the effect of including both keywords and placements in an Ad Group on the Display Network?

Answer

Your ads will be restricted to only specific sites that you choose and webpages where the content is relevant to the theme of the keywords.

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Subject: Google Certification

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Q:

Which are the regional Commissions of the UN Economic and Social Council

A) Economic Commission for Europe, Economic Commission for Asia and Pacific B) Economic Commission for Africa
C) Economic Commission for Latin America and the Caribbean D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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Filed Under: World Organisations

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Q:

In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.

Neither of the scout leaders know (A)/ how to trap wild animals (B)/ or how to prepare them for mounting (C)/ No Error (D)

A) A B) B
C) C D) D
 
Answer & Explanation Answer: A) A

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Who is the present Secretary General of the ASEN group ?

Answer

Le Luong Minh

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Subject: General Awareness

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Q:

What has no beginning, end or middle?

Answer

A Donut or Doughnut. Anything in the shape of a torus.

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Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

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