The Nervous System and Sense Organs — Biology STD 10 — Question

Each seminiferous tubule is lined on its inside by two types of cells called:

The part of nephron responsible for the recovery of water and sodium chloride from the urine is:

The smallest functional unit of the kidney is ____________

Which division takes most time?

Assertion (A): A carrier of a genetic disorder is always affected by the disorder.
Reason (R): Carriers are individuals who have one copy of a recessive allele for a genetic disorder but do not show symptoms of the disorder.

During mitosis which of the following disintegrate _________

Mitosis results in _____________

A single gene is responsible for a variety of traits. This is called

Red blood cells are also called as erythrocytes. Cellular component of blood, millions of which in the circulation of vertebrates give the blood its characteristic colour and carry oxygen from the lungs to the tissues. The mature human red blood cell is small, round, and biconcave; it appears dumbbell-shaped in profile. The cell is flexible and assumes a bell shape as it passes through extremely small blood vessels. It is covered with a membrane composed of lipids and proteins, lacks a nucleus, and contains hemoglobin-a red ironrich protein that binds oxygen.
Answer the following questions in context to RBC.
(iii) Choose the correct statement: