A single ejaculation contains $...A...$ to$...B..$. million spermatozoa. Semen has pH of $...C...$ to $...D....$ Its alkalinity helps to neutralize the acidity of urethra. Here $A,B, C$ and $D$ refers to
$\mathrm{A}-300, \mathrm{~B}-400, \mathrm{C}-8, \mathrm{D}-9$
$\mathrm{A}-200, \mathrm{~B}-300, \mathrm{C}-7.35, \mathrm{D}-7.50$
$\mathrm{A}-100, \mathrm{~B}-200, \mathrm{C}-5, \mathrm{D}-6$
$\mathrm{A}-150, \mathrm{~B}-200, \mathrm{C}-7, \mathrm{D}-8$
At which stage of life the oogenesis process is initiated?
Spermatogonia undergo ....... to produce spermatozoa
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
How many ova and sperms would be produced from $100$ secondary oocytes and $100$ secondary spermatocytes during gametogenesis in human
Give a schematic labelled diagram to represent oogenesis (without descriptions).