Flash Card
Which of these is a sexually transmitted disease caused by bacteria?
Testes are present in the ............, outside the abdominal cavity.
Many flowers have a stalk for support and it is called as
Embryonic development in humans is completed approximately within ......... months after the fertilization.
A bisexual flower shows the presence of
Members of corolla are called as .................. and they are variously colored.
Ovary is present at the basal end of each
The property of complete regeneration is observed in
Ovulation occurs usually on .......... day of menstrual cycle.
............... is the structure inside which spores of bread mould are formed.
In angiosperms, second male gamete fuses with two polar nuclei to form
Menstrual cycle is a natural process, controlled majorly by ............... hormones.
By which of the following method Paramoecium divides?
Which of these plant parts become sticky during pollination?
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ........... type of reproduction.
Seminal vesicles release their secretion in
Which of these is the method of reproduction of yeast?
Twins born with some parts of body joined to each other are known as
Androecium and are the essential whorls.
During fertilization in plants, the two male gametes are released by the pollen tube in .......... .
Under favourable condition, Hydra reproduces by the process of
............ present in semen gives energy to the sperms.
Euglena divides by
Calyx and ................ are called as accessory whorls.
Fragmentation is observed in
In asexual reproduction there is no involvement of
............. reproduces from buds on the leaf margin.
Implantation of embryo occurs in .... .
In case of plants like sugarcane and grasses, ........... occurs with the help of buds present on nodes.
In humans, sperm production occurs in the ............ .
During unfavourable or adverse conditions Amoeba forms a protective covering around its plasma membrane to form a
Complete the analogy and select the correct option. Ovary: Fruit:: Ovules:
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?
BInary fussion occurs by
During asexual reproduction, cells divide by the process of
The length of a sperm is about ............. micrometers.
Identify the CORRECT statement from the following.
Germ cells present in the ........... divide by meiosis to produce sperms.
The number of chromosome gets ............ in meiosis.
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?
Haploid male gamete fuses with haploid female gamete to form .......... zygote.
Spirogyra reproduces asexually by the method
Menopause generally occurs at the age of about
Each embryo sac consists of
............. is the union of sperm and ovum to initiate formation of a zygote.
In ..............., the parent cell divides to form two similar daughter cells. It occurs either by mitosis or amitosis.
Amoeba shows both binary fission and
Each pollen tube contains
During seed germination ................ develops by using food stored in endosperm of the seed.
...............have filamentous body and generally grow on wet bread kept in a humid place.
