Gametogenesis in men and in women
In accordance with the events during periods of life, how gametogenesis is different in men and in women?
Expert
The formation of the spermatogonia in men occurs during the embryonic period. Formation of the sperm cells though is a constant process which starts in the puberty and carries on until the old age and sometimes during all remaining life of man.
In women, all oogonia are made before the birth. The oogonia turn into the oocytes I which enter first division of the meiosis (meiosis I). This division though gets disrupted at the prophase and continues only in the puberty. After beginning of menses, an egg cell is released during every period and, in case it is fecundated, it ends the meiotic division. The oogenesis impedes after the menopause (i.e. cessation of the menstrual activity) and the climacteric period of life starts.
Explain how do plants control opening and the closing of the stomata?
Since the visual images are projected in an inverted way on retina why don't we see things reversed?
Which is the normal sign of electric charge between two sides of neuron plasma membrane? Describe potential difference (voltage) generated between these two sides? What is that voltage called?
Explain the term Aggregate Awareness?
Give a brief explanation of carbon cycle.
Specify the cells of connective tissue far or near to the others?
Are there dissimilar proteins made by the same total number of amino acids?
Explain how blood coagulation (or clotting) process be explained?
Give the name of the molecule which transports oxygen in red blood cells? Answer: The respiratory pigment of red blood cells is the hemoglobin.
Do the –R groups bound to central carbons participate in union between amino acids?
18,76,764
1935574 Asked
3,689
Active Tutors
1453443
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!