All Free Everyday Science MCQs with Answers

1121. Which of the following is not a region of the spinal cord ?

• A. Thoracic
• B. Lumber
• C. Pelvic
• D. All are lying in spinal cord region

Explanation: The spinal cord is divided into cervical, thoracic, lumbar, sacral, and coccygeal regions. Pelvic is not a recognized region of the spinal cord, while 'lumber' is evidently a misspelling of lumbar.

1122. Female Ova are ___________?

• A. Haploid
• B. Diploid
• C. Triploid
• D. None of these

Explanation: Human ova are produced by meiosis, which reduces their chromosome number to 23, or one haploid set. Fusion with a haploid sperm restores the diploid number in the zygote.

1123. In human the Y chromosome is passed to next generation from?

• A. Father to son
• B. Mother to son
• C. Father to daughter
• D. Mother to daughter

Explanation: A son receives his Y chromosome from his father, while a daughter receives the father's X chromosome. The mother contributes an X chromosome to either sex.

1124. Anti Diuretic hormone (ADH) also known as Vasopressin, Arginine Vasopressin and agripressin. Is secreted by_________ ?

• A. Pituitary
• B. Pancreas
• C. Thyroid
• D. Parathyroid

Explanation: ADH is made in the hypothalamus and stored and released by the posterior pituitary, so pituitary is the best available option. It reduces water loss by increasing water reabsorption in the kidneys.

1125. Another name for our voice box is _________?

• A. Larynx
• B. Pharynx
• C. Trachea
• D. Mouth

Explanation: The larynx is the voice box because it contains the vocal cords. The pharynx is the throat passage, while the trachea carries air toward the lungs.

1126. Fruit plant that flowers only once in lifetime?

• A. Mango
• B. Ground Nut
• C. Banana
• D. Peach

Explanation: Banana is a monocarpic plant, meaning its stem flowers and produces fruit only once before dying, although new shoots can grow from the base. Mango and peach plants flower repeatedly.

1127. The process by which kidney stones are crushed with shock waves is called?

• A. Laparoscopy
• B. Dementia
• C. Lithotripsy
• D. None of these

Explanation: Lithotripsy uses focused shock waves to break kidney stones into smaller pieces that can pass through the urinary tract. Laparoscopy is a minimally invasive surgical procedure, not shock-wave treatment.

1128. Vegetable crop with rectangular seed is?

• A. Carrot
• B. Onion
• C. Turnip
• D. Cucumber

Explanation: Onion is commonly identified in basic crop-seed classifications as having a relatively angular or rectangular seed. The other listed vegetables have seeds with more rounded, elongated, or flattened shapes.

1129. In the medical system of treatment to relieve pains, called Acupuncture?

• A. Drugs are used
• B. Herbs are used
• C. Electric shocks are applied
• D. Fine needles are pricked in the body

Explanation: Acupuncture is performed by inserting fine needles at specific points on the body. It is distinct from treatment based primarily on drugs, herbs, or electric shocks.

1130. EEG is used for diagnosing ailments connected with?

• A. Heart
• B. Brain
• C. Kidneys
• D. Lungs

Explanation: An electroencephalogram records the brain's electrical activity through electrodes placed on the scalp, helping investigate conditions such as epilepsy. Heart activity is assessed with an ECG, not an EEG.