Advertisements
Advertisements
प्रश्न
"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
Advertisements
उत्तर
The first step in sexual reproduction is gamete formation. In this step, the number of chromosomes gets halved. Thus, each gamete receives half the number of chromosomes to that of somatic cells. During fertilisation, the fusion of male and female gametes takes place, which results in the number of chromosomes in the zygote to be equal to that of somatic cells. Thus, the chromosomal number of the sexually producing parents and their offspring is the same.
APPEARS IN
संबंधित प्रश्न
The process of fusion of the male and female gametes is called ______.
What is the name of female part of a flower?
Identify A, B, C and D in the given diagram and write their names.
Sketch the labelled diagram.
Flower with its sexual reproductive organs.
A student is observing the temporary mount of a leaf peel under a microscope. Draw a labelled diagram of the structure of stomata as seen under the microscope
Generally, in a pollen tube, which of the following moves to the tip of the tube?
The 3-celled egg apparatus at the micropylar end comprises of ______
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
Double fertilization is essential for formation of ______.
Explain the post fertilization changes that occur in the ovary of a flower.
