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