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