Flash Card
In which of these techniques, fertilization is brought about in the test-tube and the embryo formed is implanted in uterus of woman at appropriate time?
............. is the union of sperm and ovum to initiate formation of a zygote.
In asexual reproduction there is no involvement of
The number of chromosome gets ............ in meiosis.
Implantation of embryo occurs in .... .
Menopause generally occurs at the age of about
During asexual reproduction, cells divide by the process of
Many flowers have a stalk for support and it is called as
Which of these plant parts become sticky during pollination?
Testes are present in the ............, outside the abdominal cavity.
Members of corolla are called as .................. and they are variously colored.
During fertilization in plants, the two male gametes are released by the pollen tube in .......... .
Calyx and ................ are called as accessory whorls.
Spores released from sporangium of Mucor germinate in moist and warm place and form new fungal colony. It shows
In ..............., the parent cell divides to form two similar daughter cells. It occurs either by mitosis or amitosis.
Amoeba shows both binary fission and
Germ cells present in the ........... divide by meiosis to produce sperms.
Each embryo sac consists of
In case of plants like sugarcane and grasses, ........... occurs with the help of buds present on nodes.
Androecium and are the essential whorls.
Which of these is the method of reproduction of yeast?
Ovulation occurs usually on .......... day of menstrual cycle.
Menstrual cycle is a natural process, controlled majorly by ............... hormones.
Identify the CORRECT statement from the following.
Under favourable condition, Hydra reproduces by the process of
Ovary is present at the basal end of each
Which of the following is NOT the paired structure in human male reproductive system?
Twins born with some parts of body joined to each other are known as
The length of a sperm is about ............. micrometers.
During seed germination ................ develops by using food stored in endosperm of the seed.
A bisexual flower shows the presence of
............. reproduces from buds on the leaf margin.
In humans, sperm production occurs in the ............ .
Which of these is a sexually transmitted disease caused by bacteria?
During unfavourable or adverse conditions Amoeba forms a protective covering around its plasma membrane to form a
Spirogyra reproduces asexually by the method
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ........... type of reproduction.
BInary fussion occurs by
Embryonic development in humans is completed approximately within ......... months after the fertilization.
............ present in semen gives energy to the sperms.
............... is the structure inside which spores of bread mould are formed.
Seminal vesicles release their secretion in
Each pollen tube contains
...............have filamentous body and generally grow on wet bread kept in a humid place.
Euglena divides by
The property of complete regeneration is observed in
Haploid male gamete fuses with haploid female gamete to form .......... zygote.
By which of the following method Paramoecium divides?
Complete the analogy and select the correct option. Ovary: Fruit:: Ovules:
Fragmentation is observed in
In angiosperms, second male gamete fuses with two polar nuclei to form
