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