In which of the following animals, digestive tract has additional chambers like crop and gizzard?
If the length of a DNA molecule is 1.1 metres, what will b the approximate number of base pairs?
Given below are two statements:
Statement I : Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.
Statement II : Rheumatoid arthritis is a condition where body does not attack self cells.
In the light of the above statements, choose the most appropriate answer from the options given below :
Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
(a) It results in the formation of haploid gametes
(b) Differentiation of gamete occurs after the completion of meiosis
(c) Meiosis occurs continuously in a mitotically dividing stem cell population
(d) It is controlled by the Luteinising Hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary
(e) It is initiated at puberty
Choose the most appropriate answer from the options given below :