Introduction to reproduction - class-X
Read the assertion (A) and reason (R) carefully to mark the correct option out of the options given below:
A. There are some plants which have in their life-cycles neither the process of fertilization nor they have meiosis.
R. In these plants, the vegetative or somatic plant body helps in the propagation of the plant.
In earthworms, self fertilization does not occur due to
Estrous cycle is characteristic of
A secondary sexual character is
Which of the following is correct?
The term blastogenesis is used for
Estrous cycle is indication of
Read the assertion and reason carefully to mark the correct option out of the options given below:
A. Rhizomes, tubers, and corms are excellent methods of sexual reproduction.
R. Allogamy is the transfer of pollen from the anther of one flower to stigma of another flower.
Apomixis is
A organism in which shows the secondary sexual characters of both male and female is called as
Protein of yolk is
Sperms are stored in earthworm after fertilization in
In the life history of cockroach (periplaneta), there is
Lippes loop is manufactured in lndia at
Development of embryo from unfertilized egg is called as
Binary fission is found in
Which is the mode of reproduction in amoeba?
Stolonic budding is a characteristic of
In which animal parthenogenesis is common?
Development of an unfertilized egg is called
Natural parthenogenesis occurs in
Yellow corpus luteum occurs in mammals in
Frog is
Secondary sexual character is
Fertilization is internal in
The mammal whose testis come into scrotal sacs only during breeding time is