Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Which of the following depicts the correct pathway of transport of sperms?
A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The magnetic field at the centre of the solenoid is: $(\mu_0 = 4\pi \times 10^{-7} \text{ T m A}^{-1})$
The difference between spermiogenesis and spermiation is?
Vasectomies:
The Leydig cells as found in the human body are the secretory source of:
The ratio of the radii of two circular coils is 1:2. The ratio of currents in the respective coils such that the same magnetic moment is produced at the centre of each coil is:
After ovulation, follicles convert into:
A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in a uniform magnetic field. What should be the energy of an $lpha$-particle to describe a circle of the same radius in the same field?
No new follicles develop in the luteal phase of the menstrual cycle because :
The main function of mammalian corpus luteum is to produce:
Newton–second is the unit of
If a small amount of antimony is added to germanium crystal:
How many Y-chromosomes are present in the 2nd polar body in human beings?
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:
At which state of life the oogenesis process is initiated?
Which part of the ovary in mammals acts as an endocrine gland after ovulation?
A wire carrying a current $I$ along the positive $x$-axis has length $L$. It is kept in a magnetic field $\vec{B} = (2\hat{i} + 3\hat{j} - 4\hat{k})$ T. The magnitude of the magnetic force acting on the wire is:
When two deuterium nuclei fuse together to form a tritium nucleus, we get a:
Receptors for sperm binding in mammals are present on:
Which of the following induces the development of the corpus luteum?