Tag: categories of diseases

Questions Related to categories of diseases

Which one of the following techniques is safest for the detection of cancers?

zoology health and diseases diseases caused by changes in lifestyle diseases and toxic substance non-infectious diseases non infectious diseases categories of diseases

  1. Radiography (X-ray)

  2. Computed tomography (CT)

  3. Histopathological studies

  4. Magnetic resonance imaging (MRI)

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Correct Option: A

According to a general survey, One in five Americans would be more at risk in developing:

zoology our health non-infectious diseases non infectious diseases categories of diseases

  1. Skin Cancers

  2. Cataracts

  3. Asthma

  4. Bone Cancer

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Correct Option: A

Which of the following are considered as risk factors which leads to non-communicable disease?

zoology our health non-infectious diseases non infectious diseases categories of diseases

  1. Over sleeping

  2. Weakness

  3. Unhealthy diet

  4. All of the above

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Correct Option: C

In human beings, retrovirus is considered as a cause of cancer because

zoology our health non-infectious diseases non infectious diseases categories of diseases

  1. Their genome contains oncogene

  2. Their hereditary material made up of single stranded RNA.

  3. They have a gene for reverse transcriptase.

  4. Their genome may contain proto-oncogene

Show answer
Correct Option: D
Explanation:

A retrovirus has been identified as a single-stranded positive sense RNA virus which has an intermediate DNA that helps it target the host cell as an obligate parasite. This virus reverses the usual pattern and uses its transcriptase enzyme to produce DNA. The transmission of these viruses been generally cell-to-cell. In human beings, cancer can be triggered by proto-oncogenes present in the retrovirus which are mistakenly incorporated into proviral DNA or by the disruption of the cellular proto-oncogenes

Cancer is a disorder of cell growth in a part of the body

zoology health and diseases non-infectious diseases non infectious diseases categories of diseases

  1. True

  2. False

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Correct Option: A
Explanation:

  • Cancer is a class of diseases characterized by out-of-control cell growth. There are over 100 different types of cancer, and each is classified by the type of cell that is initially affected.
  • Cancer harms the body when damaged cells divide uncontrollably to form lumps or masses of tissue called tumors. Tumors can grow and interfere with the digestive, nervous, and circulatory systems, and they can release hormones that alter body function. Tumors that stay in one spot and demonstrate limited growth are generally considered to be benign.
So, the correct option is 'True'

Transformation of $C$. one into oncogene is known as?

zoology health and diseases non-infectious diseases non infectious diseases categories of diseases

  1. Carcinogen

  2. Oncogenic transformation

  3. Neoplastic cell

  4. Cancer cell

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Correct Option: A
Explanation:
Transformation of C.one into oncogene is known as carcinogen. A carcinogen is any substance, radionuclide or radiation that promotes carcinogenesis, the formation of cancer. This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. 
So the correct option is 'Carcinogen'.

Lung cancer is caused by?

biology health and diseases non-infectious diseases non infectious diseases categories of diseases

  1. Coal mining

  2. Chromium fluoride

  3. Cement factory

  4. Bauxite mining

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Correct Option: A

Which of the following changes would you find in the disease polycythemia?

biology health and diseases non-infectious diseases non infectious diseases categories of diseases

  1. Increase in total WBCs

  2. Decrease in total RBCs

  3. Increase in total RBCs

  4. Decrease in total WBCs

Show answer
Correct Option: C
Explanation:

 Polycythemia is a disease state in which the hematocrit (the volume % of RBC in the Blood) is elevated.It can be due to an increase in the number of RBC ("absolute polycythemia") or to a decrease in the volume of plasma ("relative polycythemia").

So, he correct option is C. ( Increase in total RBC )

'Philadelphia chromosome' is found in the patient suffering from

biology health and diseases non-infectious diseases non infectious diseases categories of diseases

  1. Insomnia

  2. Leukaemia

  3. Hepatitis

  4. Albinism

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Correct Option: B
Explanation:

'Philadelphia chromosome' is found in the patient suffering from leukaemia. The main cause is a genetic abnormality in chromosome 22 of leukaemia cancer cells. The chromosome is short due to a reciprocal translocation between chromosome 9 and chromosome 22 and contains a fusion gene called BCR-ABL1 which is juxtaposed onto the BCR gene of chromosome 22, coding for a hybrid protein, a tyrosine kinase signalling protein which causes rapid multiplication of the cell.

So, the correct answer is 'Leukaemia'.

Causative agents of cancer are termed 

biology health and diseases non-infectious diseases non infectious diseases categories of diseases

  1. Oncogenes

  2. Radiogens

  3. Estrogens

  4. Carcinogens

Show answer
Correct Option: D
Explanation:

Oncogenes are genes that has the potential to cause cancer.
Estrogens are a group of hormones that are important for female sexual and reproductive development.
Carcinogens are substances, radionuclide or radiation that is an agent directly involved in causing cancer.
Therefore, the correct answer is option D.