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Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?
Match the items given in Column-I with those in Column-II and select the correct option given below: Column-I (a) Cristae (b) Cisternae (c) Thylakoids Column-II (i) Flat membranous sacs in stroma (ii) Infoldings in mitochondria (iii) Disc-shaped sacs in Golgi apparatus
Given below are two statements: Statement I: The coagulum is formed of network of threads called thrombins. Statement II: Spleen is the graveyard of erythrocytes. In the light of the above statements, choose the most appropriate answer from the options given below:
The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because 'O' in it refers to having:
An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is $50 \text{ cm}$. The next larger length of the column resonating with the same tuning fork is
Given below is a diagrammatic sketch of a portion of the human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, and D:
"Saheli" is a(n)
$4.0 \text{ g}$ of a gas occupies $22.4 \text{ L}$ at NTP. The specific heat capacity of the gas at constant volume is $5.0 \text{ J K}^{-1}\text{mol}^{-1}$. If the speed of sound in this gas at NTP is $952 \text{ ms}^{-1}$, then the heat capacity at constant pressure is: (Take gas constant $R = 8.3 \text{ J K}^{-1}\text{mol}^{-1}$)
Given below are two statements: Statement I: Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct. Statement II: The cavity of the cervix is called cervical canal which along with vagina forms birth canal. In light of the above statements, choose the correct answer from the options given below:
Secretions from which one of the following are rich in fructose, calcium and some enzymes?
Select the correct sequence for the transport of sperm cells in the male reproductive system:
Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?
The signals for parturition originate from:
Assisted reproductive technology, IVF involves transfer of:
Which of the following cells during gametogenesis is normally diploid?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Endometrium is necessary for implantation of blastocyst. Reason (R): In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium. In the light of the above statements, choose the correct answer from the options given below:
Identify the correct statement from the following :
Which of the following is/are correct?
Which one of the following is the correct match of the events occurring during the menstrual cycle?
Two bodies of mass $10\text{ kg}$ and $5\text{ kg}$ moving in concentric orbits of radii $R$ and $r$ such that their periods are the same. Then the ratio between their centripetal acceleration is: