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Match the following columns and select the correct option. Column I (a) T4 (b) PTH (c) GnRH (d) LH Column II (i) Hypothalamus (ii) Thyroid (iii) Pituitary (iv) Parathyroid
About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occur?
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is:
If M(A, Z), M_p, and M_n denote the masses of the nucleus $_{Z}^{A}X$, proton, and neutron respectively in units of u (1 u = 931.5 MeV/c^2) and BE represents its binding energy in MeV. Then:
For the following logic gate, the truth table is:
In the given figure, the potential difference between $A$ and $B$ is:
Arrange the following male sex accessory ducts in the correct sequence for the transport of sperms from the testis: (a) Vas deferens (b) Urethral meatus (c) Vasa efferentia (d) Rete testis (e) Epididymis
Which of the following events is not associated with ovulation in human females?
Several hormones like hCG, hPL, oestrogen, progesterone are produced by:
If the nuclear radius of $^{27}\text{Al}$ is 3.6 Fermi, the approximate nuclear radius of $^{64}\text{Cu}$ in Fermi is:
A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while turning is
The binding energy per nucleon of deuterium and helium atom is 1.1 MeV and 7.0 MeV. If two deuterium nuclei fuse to form a helium atom, the energy released is:
Signals from fully developed foetus and placenta ultimately lead to parturition which requires the release of:
Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?
A sample of radioactive element has a mass of 10 gm at an instant $t = 0$. The approximate mass of this element in the sample after two mean lives is:
If the radius of ${}^{27}_{13}\mathrm{Al}$ nucleus is taken to be $R_{\mathrm{Al}}$, then the radius of ${}^{125}_{53}\mathrm{Te}$ nucleus is near:
A point performs simple harmonic oscillation of period $T$ and the equation of motion is given by $x = a \sin(\omega t + \pi/6)$. After the elapse of what fraction of the time period the velocity of the point will be equal to half of its maximum velocity?
Which of the following sets is similar in nature or function?
The shared terminal duct of the reproductive and urinary system in the human male is:
A uniform rope of length $L$ and mass $m_1$ hangs vertically from a rigid support. A block of mass $m_2$ is attached to the free end of the rope. A transverse pulse of wavelength $\lambda_1$ is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is $\lambda_2$. The ratio $\frac{\lambda_2}{\lambda_1}$ is: