Q. Embryo at two celled stage has

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Q. Genetic variations are produced in

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Q. Duration of chilling treatment in vernalisation varies from

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Q. Total gestation period in humans is about

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Q. Motile male gamete or sperm is also known as

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Q. Menstrual cycle can be divided into

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Q. Each testis consists of a highly complex duct system called

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Q. External Fertilization occurs in

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Q. Process of development of a haploid offspring from a haploid egg is called

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Q. Initial stage of birth is result of stimuli from the

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Q. Endometrium is made receptive for implantation of zygote by

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Q. In hone bees, male or drones develop from

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Q. Cucumber, tomato and garden pea are

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Q. Diploid parthenogenesis occurs in

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Q. Function of oxytocin hormone is to induce

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Q. Vas deferens becomes highly convulated to form

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Q. Corpus luteum secretes hormone

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Q. In nature, p660 to p730 conversion takes place in

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Q. Uterine contractions during child birth are strongest from

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Q. Premature birth or miscarriage is caused by disturbances in secretion of

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