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