Which one of the following statements about prions is FALSE? a. Prions are infectious proteins. b. Prions have caused disease in Americans. c. Human disease is called variant CJD. d. Prions can be transmitted to humans from infected beef.

Which one of the following statements about prions is FALSE?
a. Prions are infectious proteins.
b. Prions have caused disease in Americans.
c. Human disease is called variant CJD.
d. Prions can be transmitted to humans from infected beef.
by

1 Answer

Answer :

d. Prions can be transmitted to humans from infected beef.
by

Related questions

_____ are infectious RNA particles a. Viroids b. Prions c. Virions d. A-C are correct

Description : _____ are infectious RNA particles a. Viroids b. Prions c. Virions d. A-C are correct

Last Answer : a. Viroids

What is the most common infectious disease today? a. Respiratory Infections b. Intestinal Infections c. Sexually Transmitted Infections d. Dental Caries

Description : What is the most common infectious disease today? a. Respiratory Infections b. Intestinal Infections c. Sexually Transmitted Infections d. Dental Caries

Last Answer : d. Dental Caries

What is the most common infectious disease today? a. Respiratory Infections b. Intestinal Infections c. Sexually Transmitted Infections d. Dental Caries

Description : What is the most common infectious disease today? a. Respiratory Infections b. Intestinal Infections c. Sexually Transmitted Infections d. Dental Caries

Last Answer : d. Dental Caries

_____ is a cutaneous or visceral disease transmitted by the bite of an infected female sandfly. a. Malaria b. Leishmaniasis c. Apicomplexa d. Amoebiasis

Description : _____ is a cutaneous or visceral disease transmitted by the bite of an infected female sandfly. a. Malaria b. Leishmaniasis c. Apicomplexa d. Amoebiasis

Last Answer : b. Leishmaniasis

Which of the following are the causes of "mad cow disease"? a. Viriods b. Prions c. Virions d. A-C are correct

Description : Which of the following are the causes of "mad cow disease"? a. Viriods b. Prions c. Virions d. A-C are correct

Last Answer : b. Prions

Attenuated viruses are those that _____. a. can be used to treat viral disease. b. give rise to viroids and prions. c. multiply in cells but at a low rate. d. have been treated with chemicals such as formaldehyde.

Description : Attenuated viruses are those that _____. a. can be used to treat viral disease. b. give rise to viroids and prions. c. multiply in cells but at a low rate. d. have been treated with chemicals such as formaldehyde.

Last Answer : c. multiply in cells but at a low rate.

This genus of parabasalid affects over 7.4 million Americans annually and is considered a sexually transmitted disease. a. Toxoplasma b. Ctyptosporidium c. Cyclospora d. Trichomonas

Description : This genus of parabasalid affects over 7.4 million Americans annually and is considered a sexually transmitted disease. a. Toxoplasma b. Ctyptosporidium c. Cyclospora d. Trichomonas

Last Answer : d. Trichomonas

A zoonosis is a disease a. Transmitted From Humans To Animals. b. Spread From Animals To Humans. c. Transmitted Between Wild And Domestic Animals. d. Spread Between Wild Animals

Description : A zoonosis is a disease a. Transmitted From Humans To Animals. b. Spread From Animals To Humans. c. Transmitted Between Wild And Domestic Animals. d. Spread Between Wild Animals

Last Answer : b. Spread From Animals To Humans.

Which of the following statements is incorrect? (a) Prions consist of abnormally folded proteins. (b) Viroids lack a protein coat. (c) Viruses are obligate parasites. (d) Infective constituent in viruses is the protein coat.

Description : Which of the following statements is incorrect? (a) Prions consist of abnormally folded proteins. (b) Viroids lack a protein coat. (c) Viruses are obligate parasites. (d) Infective constituent in viruses is the protein coat.

Last Answer : (d) Infective constituent in viruses is the protein coat.

Which of the following statements regarding the transmission of infectious agents through blood transfusions is/are true? A. The transmission rates for human immunodeficiency virus (HIV) have been decreasing progressively since the early 1980s. B. The transmission rates of hepatitis have been decreasing steadily since the 1980s. C. Cytomegalovirus (CMV) is the infectious agent most commonly transmitted in blood. D. Severely immunocompromised patients (such as patients undergoing transplantation) should receive specially screened blood products.

Description : Which of the following statements regarding the transmission of infectious agents through blood transfusions is/are true? A. The transmission rates for human immunodeficiency virus (HIV) ... patients (such as patients undergoing transplantation) should receive specially screened blood products.

Last Answer : Answer: ABCD DISCUSSION: The incidence of both HIV and hepatitis transmitted via blood transfusions has been steadily decreasing since the 1980s. This is related to improved ... , severely compromised patients such as those undergoing transplantation should receive CMV-negative blood products

Virus infected cells produce a set of cytokine proteins called _____ that "alert" surrounding cells to the viral threat. a. Interleukin-1 (IL-1) b. Interferon. c. Toll Like Receptors (TLR) d. Acute Phase Proteins

Description : Virus infected cells produce a set of cytokine proteins called _____ that "alert" surrounding cells to the viral threat. a. Interleukin-1 (IL-1) b. Interferon. c. Toll Like Receptors (TLR) d. Acute Phase Proteins

Last Answer : b. Interferon.

Viroids and prions differ in that viroids are believed to contain only ______, while prions are believed to contain only _______. a. carbohydrate; amino acids b. nucleic acid; protein c. amino acids; carbohydrate d. protein; nucleic acid

Description : Viroids and prions differ in that viroids are believed to contain only ______, while prions are believed to contain only _______. a. carbohydrate; amino acids b. nucleic acid; protein c. amino acids; carbohydrate d. protein; nucleic acid

Last Answer : b. nucleic acid; protein

Ivanowsky, Beijerinck and Reed all began studies with particles smaller than the filters they were working with. This began the study of _____. a. measles b. viruses c. prions d. bacteria

Description : Ivanowsky, Beijerinck and Reed all began studies with particles smaller than the filters they were working with. This began the study of _____. a. measles b. viruses c. prions d. bacteria

Last Answer : b. viruses

Infectious _____ is caused by the ________virus infecting the B lymphocytes. a. mononucleosis, Epstein Barr b. shingles, varicella c. Epstein Barr, yellow fever d. Meningitis, Lassa

Description : Infectious _____ is caused by the ________virus infecting the B lymphocytes. a. mononucleosis, Epstein Barr b. shingles, varicella c. Epstein Barr, yellow fever d. Meningitis, Lassa

Last Answer : d. Meningitis, Lassa

Which one of the following is NOT considered an emerging infectious disease? a. Polio b. Hantavirus pulmonary disease c. Lyme disease d. AIDS

Description : Which one of the following is NOT considered an emerging infectious disease? a. Polio b. Hantavirus pulmonary disease c. Lyme disease d. AIDS

Last Answer : c. Lyme disease

Humans can acquire which one of the following diseases from the droppings of infected birds? a. Q fever b. Legionellosis c. Tuberculosis d. Psittacosis

Description : Humans can acquire which one of the following diseases from the droppings of infected birds? a. Q fever b. Legionellosis c. Tuberculosis d. Psittacosis

Last Answer : d. Psittacosis

Humans become infected with Mycobacterium tuberculosis most frequently by A.inhalation B.ingestion C.contact D.inoculation

Description : Humans become infected with Mycobacterium tuberculosis most frequently by A.inhalation B.ingestion C.contact D.inoculation

Last Answer : A.inhalation

Which one of the following statements is NOT correct concerning the reproductive cycle of Chlamydia? a. Reticulate Bodies Are Infectious. b. Reticulate Bodies Reorganize Into Elementary Bodies. c. Elementary Bodies Infect Host Cells. d. Elementary Bodies Transform Into Reticulate Bodies.

Description : Which one of the following statements is NOT correct concerning the reproductive cycle of Chlamydia? a. Reticulate Bodies Are Infectious. b. Reticulate Bodies Reorganize Into Elementary Bodies. c. Elementary Bodies Infect Host Cells. d. Elementary Bodies Transform Into Reticulate Bodies.

Last Answer : a. Reticulate Bodies Are Infectious.

Which one of the following statements applies to smallpox? a. The disease is associated with animal contact. b. The disease has been eradicated worldwide. c. It can be sexually-transmitted. d. The virus can lie dormant in host cells.

Description : Which one of the following statements applies to smallpox? a. The disease is associated with animal contact. b. The disease has been eradicated worldwide. c. It can be sexually-transmitted. d. The virus can lie dormant in host cells.

Last Answer : b. The disease has been eradicated worldwide.

Transfusions of blood products can be associated with a number of complications including immediate and delayed hemolytic reactions; nonhemolytic reactions; infectious disease transmission; and complications of massive transfusions. Which of the following statements are true concerning complications of blood transfusions? a. Immediate hemolytic transfusion reactions are caused by major ABO blood group incompatibility b. Nonhemolytic transfusion reactions are usually due to RH incompatibility and are therefore more common in women of childbearing age c. The most common complication of massive blood transfusion is dilutional thrombocytopenia d. Routine impaired calcium supplementation is necessary during most massive transfusion episodes

Description : Transfusions of blood products can be associated with a number of complications including immediate and delayed hemolytic reactions; nonhemolytic reactions; infectious disease transmission; and ... d. Routine impaired calcium supplementation is necessary during most massive transfusion episodes

Last Answer : Answer: a, c Immediate hemolytic reactions are usually caused by blood group ABO incompatibility although they may be caused by antigens of other blood group systems ... when associated with massive transfusion during complex intraoperative procedures such as thoracoabdominal aneurysm resection

_______ disease develops on the hands or feet. Sores on the skin become infected with Mycobacterium marinum in polluted water or in infected fish. a. Fish handlers b. Cholera c. Cowpox d. Rotovirus e. Coxsackie

Description : _______ disease develops on the hands or feet. Sores on the skin become infected with Mycobacterium marinum in polluted water or in infected fish. a. Fish handlers b. Cholera c. Cowpox d. Rotovirus e. Coxsackie

Last Answer : a. Fish handlers

Newborns exposed to Chlamydia trachomatis from an infected mother may experiencea. Toxic Shock Syndrome or Staphylococcal Skin Disease. b. Dental Caries When the Teeth Grow In. c. Destruction of the Reproductive Organs. d. Disease of the Eyes or Lungs.

Description : Newborns exposed to Chlamydia trachomatis from an infected mother may experience a. Toxic Shock Syndrome or Staphylococcal Skin Disease. b. Dental Caries When the Teeth Grow In. c. Destruction of the Reproductive Organs. d. Disease of the Eyes or Lungs.

Last Answer : d. Disease of the Eyes or Lungs.

: _____ is a parasitic flagellate in humans and is transmitted through sexual intercourse. a. Trichonympha b. Trypanosoma c. Trichomonas d. Leishmania,

Description : : _____ is a parasitic flagellate in humans and is transmitted through sexual intercourse. a. Trichonympha b. Trypanosoma c. Trichomonas d. Leishmania,

Last Answer : b. Trypanosoma

The Rickettsias are transmitted to humans by _________. a. arthropods b. flies c. mosquitoes d. viruses

Description : The Rickettsias are transmitted to humans by _________. a. arthropods b. flies c. mosquitoes d. viruses

Last Answer : a. arthropods

A microarray can be used to _____. a. identify if a patient has been infected by a pathogen b. produce human insulin c. insert a viral gene into a plant to prevent viral infection d. A-C are correct

Description : A microarray can be used to _____. a. identify if a patient has been infected by a pathogen b. produce human insulin c. insert a viral gene into a plant to prevent viral infection d. A-C are correct

Last Answer : a. identify if a patient has been infected by a pathogen

This disease, caused by infection with the gram-negative Yersinia pestis, is transmitted by fleas from rats to humans What is the more common name for this disease?

Description : This disease, caused by infection with the gram-negative Yersinia pestis, is transmitted by fleas from rats to humans What is the more common name for this disease?

Last Answer : ANSWER: Bubonic Plague or Black Death

Which one of the following statements is correct with respect to AIDS? (a) The HIV can be transmitted through eating food together with an infected person. (b) Drug addicts are least susceptible to HIV infection.(c) AIDS patients are being fully cured cent per cent with proper care and nutrition. (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.

Description : Which one of the following statements is correct with respect to AIDS? (a) The HIV can be transmitted through eating food together with an infected person. (b) Drug addicts are least ... and nutrition. (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.

Last Answer : (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.

The nurse providing education regarding sexually transmitted diseases includes which of the following statements regarding herpes virus 2 (herpes genitalis)? a) In pregnant women with active herpes virus, babies delivered vaginally may become infected with the virus. Therefore, a cesarean delivery may be performed if the virus recurs near the time of delivery.

Description : The nurse providing education regarding sexually transmitted diseases includes which of the following statements regarding herpes virus 2 (herpes genitalis)? a) In pregnant women with active herpes virus, babies ... very difficult to kill. Usually, the virus is killed at room temperature by drying.

Last Answer : a) In pregnant women with active herpes virus, babies delivered vaginally may become infected with the virus. Therefore, a cesarean delivery may be performed if the virus recurs near the time of delivery.

Which one of the following statements is NOT true of acne? a. Acne is caused by Propionibacterium acnes. b. Plugged sebaceous glands are called erythemas. c. Whiteheads are completely blocked follicles. d. Acne is not a preventable disease.

Description : Which one of the following statements is NOT true of acne? a. Acne is caused by Propionibacterium acnes. b. Plugged sebaceous glands are called erythemas. c. Whiteheads are completely blocked follicles. d. Acne is not a preventable disease.

Last Answer : b. Plugged sebaceous glands are called erythemas.

_____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index

Description : _____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index

Last Answer : a. Selective toxicity

Factors affecting virulence may include a. The presence of pathogenicity islands. b. Their ability to penetrate the host. c. The infectious dose. d. All the above (a—c) are correct.

Description : Factors affecting virulence may include a. The presence of pathogenicity islands. b. Their ability to penetrate the host. c. The infectious dose. d. All the above (a—c) are correct.

Last Answer : d. All the above (a—c) are correct.

Researchers have associated the ______ virus with infectious mononucleosis and have evidence that the virus also causes _______. a. Epstein-Barr; hepatitis B b. Epstein-Barr; Burkitt's lymphoma c. Coxsackie; hepatitis B d. Coxsackie; Burkitt lymphoma

Description : Researchers have associated the ______ virus with infectious mononucleosis and have evidence that the virus also causes _______. a. Epstein-Barr; hepatitis B b. Epstein-Barr; Burkitt's lymphoma c. Coxsackie; hepatitis B d. Coxsackie; Burkitt lymphoma

Last Answer : d. Coxsackie; Burkitt lymphoma

Which of the following cause new emerging infectious diseases? a. mutation b. recombination c. cross host ranges d. A-C are correct

Description : Which of the following cause new emerging infectious diseases? a. mutation b. recombination c. cross host ranges d. A-C are correct

Last Answer : d. A-C are correct

An example of a virus causing cytopathic effects is _____. a. Paraxyxoviruses causeing syncytia b. Infectious mononucleosis with foamy-llking cytoplasm c. Rabies causing Negri bodies d. A-C are correct

Description : An example of a virus causing cytopathic effects is _____. a. Paraxyxoviruses causeing syncytia b. Infectious mononucleosis with foamy-llking cytoplasm c. Rabies causing Negri bodies d. A-C are correct

Last Answer : d. A-C are correct

Transmitted by an arthropod. a. Filariasis b. Trichinosis c. Hookworm disease

Description : Transmitted by an arthropod. a. Filariasis b. Trichinosis c. Hookworm disease

Last Answer : a. Filariasis

Fifth disease a. Is hospital acquired? b. Causes white skin warts. c. Causes benign skin growths.d. Is transmitted by respiratory droplets.

Description : Fifth disease a. Is hospital acquired? b. Causes white skin warts. c. Causes benign skin growths. d. Is transmitted by respiratory droplets.

Last Answer : d. Is transmitted by respiratory droplets.

Lyme disease is transmitted by _____. a. Fleas b. Mosquitoes c. Lice d. Ticks

Description : Lyme disease is transmitted by _____. a. Fleas b. Mosquitoes c. Lice d. Ticks

Last Answer : d. Ticks

The following statement(s) is/are true concerning newer detection methods of systemic infection. a. Enzyme-linked immunosorbent assay (ELISA) is a rapid immunologic assay used for both antigen and antibody detection b. Southern, northern, and western immunoblot techniques are used to detect DNA, RNA, or proteins, respectively c. Polymerase chain reaction (PCR) is a sensitive assay used to detect small amounts of microbial DNA, thus detecting infection at its early stages d. Infectious agents currently detected using advanced molecular techniques include cytomegalovirus (CMV) and human immunodeficiency virus (HIV)

Description : The following statement(s) is/are true concerning newer detection methods of systemic infection. a. Enzyme-linked immunosorbent assay (ELISA) is a rapid immunologic assay used for ... detected using advanced molecular techniques include cytomegalovirus (CMV) and human immunodeficiency virus (HIV)

Last Answer : Answer: a, b, c, d Although the classic detection of infection based on clinical signs of infection and bacterial culture remain the most common clinical tools, increasing ... including CMV and HIV. Furthermore, preliminary investigations into possible detection of fungal pathogens are underway

Common cold is not cured by antibiotics because it is (a) caused by a virus (b) caused by a Gram-positive bacterium (c) caused by a Gram-negative bacterium (d) not an infectious disease.

Description : Common cold is not cured by antibiotics because it is (a) caused by a virus (b) caused by a Gram-positive bacterium (c) caused by a Gram-negative bacterium (d) not an infectious disease.

Last Answer : (b) caused by a Gram-positive bacterium

Infectious coryza is transmitted A A. horizontally B. Vertically C. does not spread D. None of these

Description : Infectious coryza is transmitted A A. horizontally B. Vertically C. does not spread D. None of these

Last Answer : horizontally

Stem and loop structures are A- proteins that help partially denatured enzymes to recover their native configuration B- structures in DNA caused by inverted repeats C- structures at the ends of linear eukaryotic DNA molecules D- the bonds between adjacent DNA nucleotides in the same strand

Description : Stem and loop structures are A- proteins that help partially denatured enzymes to recover their native configuration B- structures in DNA caused by inverted repeats C- structures at the ends of linear eukaryotic DNA molecules D- the bonds between adjacent DNA nucleotides in the same strand

Last Answer : structures in DNA caused by inverted repeats

What are some of the initial symptoms in about 70% of people infected with HIV within the first few weeks? a. A migrating rash covering the whole body b. Flu-like symptoms, of fever, chills c. Sneezing and symptoms of a head cold d. No one develops symptoms until several years later

Description : What are some of the initial symptoms in about 70% of people infected with HIV within the first few weeks? a. A migrating rash covering the whole body b. Flu-like symptoms, of fever, chills c. Sneezing and symptoms of a head cold d. No one develops symptoms until several years later

Last Answer : b. Flu-like symptoms, of fever, chills

____ becomes activated to eliminate "nonself" cells, such as virus- infected cells or cancer cells. a. Humoral immune response b. Cell-mediated immune response c. Complement d. Inflammation

Description : ____ becomes activated to eliminate "nonself" cells, such as virus- infected cells or cancer cells. a. Humoral immune response b. Cell-mediated immune response c. Complement d. Inflammation

Last Answer : b. Cell-mediated immune response

TH2 cells bind to a. MHC-11/peptide complex on APC cells. b. B cell receptors. c. MHc-1/etid complex on infected cells. d. MHC-11/peptide complex on B cells.

Description : TH2 cells bind to a. MHC-11/peptide complex on APC cells. b. B cell receptors. c. MHc-1/etid complex on infected cells. d. MHC-11/peptide complex on B cells.

Last Answer : d. MHC-11/peptide complex on B cells.

Skin ulcers are a common lesion resulting from being bitten by a. A Tick Infected With B. Burgdorferi. b. Fleas Infected With Y. Pestis. c. A Tick Infected With F. Tularensis.d. Lice Infected With C. Tetani.

Description : Skin ulcers are a common lesion resulting from being bitten by a. A Tick Infected With B. Burgdorferi. b. Fleas Infected With Y. Pestis. c. A Tick Infected With F. Tularensis. d. Lice Infected With C. Tetani.

Last Answer : c. A Tick Infected With F. Tularensis.

The _____ is the most commonly infected region of the respiratory tract. a. Lungs b. Bronchi c. Throat d. Nose e. Tonsils

Description : The _____ is the most commonly infected region of the respiratory tract. a. Lungs b. Bronchi c. Throat d. Nose e. Tonsils

Last Answer : d. Nose

Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.

Description : Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.

Last Answer : a. Take Up DNA Fragments From The Environment.

During the first 10 minutes after injection of phage DNA, no phage can be recovered by disrupting the infected bacterium. This is termed as A- eclipse period B- rise period C- latent period D- burst size

Description : During the first 10 minutes after injection of phage DNA, no phage can be recovered by disrupting the infected bacterium. This is termed as A- eclipse period B- rise period C- latent period D- burst size

Last Answer : eclipse period

A viral load test detects the A- provirus of HIV in infected cells B- .total amount of virus in the infected host C- number of viruses being released by each infected cell D- .amount of bacteriophage being produced by E. coli cells

Description : A viral load test detects the A- provirus of HIV in infected cells B- .total amount of virus in the infected host C- number of viruses being released by each infected cell D- .amount of bacteriophage being produced by E. coli cells

Last Answer : provirus of HIV in infected cells