The disease caused by the human papillomavirus (HPV) is: MCQ with Answer and Explanation

The disease caused by the human papillomavirus (HPV) is:
A. Malaria
B. Cervical cancer
C. Tuberculosis
D. Cholera
Answer: Option B
Solution (By JKSSB Mock Tests)
Certain high-risk strains of HPV are a major cause of cervical cancer. Vaccines are available. TB is bacterial, malaria protozoan, cholera bacterial.

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Practice More Biology Questions

Question #1
The outermost layer of the skin is called the:
A. Hypodermis
B. Epidermis
C. Dermis
D. Endodermis

Correct Answer: Option B


Explanation:
The epidermis is the avascular, outermost layer of skin, composed mainly of keratinized stratified squamous epithelium. It provides a waterproof barrier and creates skin tone via melanocytes. The dermis is below, containing vessels and nerves, hypodermis is subcutaneous fat, endodermis is a root layer in plants.

This question belongs to: Science Biology
Question #2
The 'Hormone Gastric Inhibitory Peptide' (GIP), also known as Glucose-dependent Insulinotropic Peptide, is secreted by the K cells of the duodenum and jejunum. Its primary function in the presence of elevated blood glucose is to:
A. Stimulate gastric acid secretion
B. Inhibit gastric acid secretion and stimulate insulin release from the pancreas
C. Stimulate glucagon release
D. Inhibit insulin release

Correct Answer: Option B


Explanation:
Gastric Inhibitory Peptide (GIP), now more commonly called Glucose-dependent Insulinotropic Peptide, is an incretin hormone secreted by the K cells of the small intestine in response to the ingestion of food, particularly glucose and fats. Its name reflects its two main actions: 1) It inhibits gastric acid secretion and slows gastric emptying (the 'gastric inhibitory' effect). 2) In the presence of elevated blood glucose, it potently stimulates the beta cells of the pancreas to secrete insulin (the 'insulinotropic' effect), preparing the body to handle the incoming nutrients.

This question belongs to: Science Biology
Question #3
Which plant hormone is primarily responsible for apical dominance?
A. Gibberellin
B. Cytokinin
C. Auxin
D. Ethylene

Correct Answer: Option C


Explanation:
Auxin (indole-3-acetic acid) produced at the shoot apex suppresses the growth of lateral buds, a phenomenon called apical dominance. Removing the apex allows lateral buds to grow. Cytokinin promotes cell division and counteracts apical dominance. Gibberellin stimulates stem elongation, and ethylene is involved in fruit ripening and senescence. The auxin-cytokinin ratio determines root and shoot differentiation in tissue culture.

This question belongs to: Science Biology