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Male Reproductive System in Human
Human Reproductive System - In human beings, sexual reproduction takes place. Sexes are separate and hence they are known to exhibit sexual dimporphism. Males have sex organs called the tetes while the females have sex organs called the ovaries. Even in the external ap..
Activation of Ovum
The penetration of the sperm activates the egg and initiates a series of changes in the egg cortex and in the egg cytoplasm. Ovulation in the human female occurs at the secondary oocyte stage in which meiosis - I has been completed and the first pol..
Ovaries
are a pair of oval structures that are present one on either side. The ovaries produce eggs, one at a time, every alternate month. The eggs are produced by the germinal epithelial cells of the ovary. ..
are a pair of oval structures that are present one on either side. The ovaries produce eggs, one at a time, every alternate month. The eggs are produced by the germinal epithelial cells of the ovary. ..Ovum
. Nucleus is excentric in position, so human ovum has polarity. The side of the ovum with nucleus and polar body is called animal pole and the opposite side is called vegetal pole. The line passing through the 2 poles is called primary axis or animal vegetal axis. The human..
Cleavage (Segmentation)
Cleavage (Segmentation) - Cleavage is an unique embryological process which transforms the single fertilised egg cell into a sphere of closely aggregated multitude of cells. Immediately after fertilisation the fertilised ovum (egg cell) undergoes a ..
Cleavage (Segmentation) - Cleavage is an unique embryological process which transforms the single fertilised egg cell into a sphere of closely aggregated multitude of cells. Immediately after fertilisation the fertilised ovum (egg cell) undergoes a ..Fertilisation
Fertilisation can be defined as the fusion of the sperm nucleus with the egg nucleus to form a diploid cell known as zygote. The fertilisation is internal in the human reproductive system. It is achieved by the insertion of the male organ, penis into the vagina of the..
Fertilisation can be defined as the fusion of the sperm nucleus with the egg nucleus to form a diploid cell known as zygote. The fertilisation is internal in the human reproductive system. It is achieved by the insertion of the male organ, penis into the vagina of the..Fertilisation
Fertilisation can be defined as the fusion of the sperm nucleus with the egg nucleus to form a diploid cell known as zygote. The fertilisation is internal in the human reproductive system. It is achieved by the insertion of the male organ, penis into the vagina of the ..
Fertilisation can be defined as the fusion of the sperm nucleus with the egg nucleus to form a diploid cell known as zygote. The fertilisation is internal in the human reproductive system. It is achieved by the insertion of the male organ, penis into the vagina of the ..Question 21
Question: The largest animal cell is ____. 1. ostrich egg 2. amoeba 3. red blood corpuscle 4. human sperm Answer: ..
Summary
Animals may reproduce by asexual and sexual modes. The reproductive system of sexually reproducing animals consists of primary sex organs which produce the gametes, the secondary sex organs which participate in reproduction but do not form gametes and accessory sex characters which distinguish the ..
sperms
In multicellular organisms, the male gametes called the are produced by the male reproductive part and the female gametes called the eggs are produced by the female reproductive part. The male gamete of one individual fertilizes the female gamete of anot..
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