Explanation

• Glass snake is actually not a true snake.
• It is a legless lizard that resembles a snake.
• Coral snake → True snake
• Sea snake → True snake
• Rattlesnake → True snake

Last verified on 04-06-2026

Explanation

• H. J. Muller was the first scientist to induce mutations using X-rays in fruit flies (Drosophila).
• His groundbreaking experiments were conducted in 1927.
• He demonstrated that X-rays can cause genetic changes (mutations).
• This discovery greatly advanced the field of genetics.

Last verified on 04-06-2026

Explanation

• Cell specialization (differentiation) occurs when cells perform specific functions.
• Specialized cells have the same DNA but use different genes.
• Different genes are turned on or off according to the cell's role.
• This process allows the formation of tissues and organs.

Last verified on 04-06-2026

Explanation

• A Barr body is a densely staining structure found in the nuclei of female somatic cells.
• It represents an inactive X chromosome.
• It is visible during the interphase stage of the cell cycle.
• It helps in dosage compensation between males and females.

Last verified on 04-06-2026

Explanation

• Above Board means ایماندار یا قابل اعتماد شخص
• "Above board" means being honest and transparent in one's dealings, without hiding any intentions.
• It refers to someone who is trustworthy and fair in their actions.

Last verified on 04-06-2026

Explanation

• A stoic is a person who remains calm and unaffected by pain, pleasure, or emotions.
• Stoicism is a philosophy that teaches self-control and endurance.
• Such people face difficulties without excessive complaint or excitement.
• The term originates from ancient Greek philosophy.

Last verified on 04-06-2026

Explanation

Explanation

Explanation

• The phrase to spill the beans is an idiomatic expression.
• It means to reveal a secret or surprise, often accidentally or unintentionally.

Last verified on 03-04-2026

Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026