|
Illustrate the following with the help of suitable diagrams
|
|
0
|
3770
|
March 19, 2018
|
|
. How does natural vegetative propagation occur?
|
|
0
|
2776
|
March 19, 2018
|
|
List two reasons for the appearance of variations among the progeny formed by sexual reproduction
|
|
0
|
1515
|
March 19, 2018
|
|
Illustrate the following with the help of suitable diagrams:
|
|
0
|
11205
|
March 19, 2018
|
|
Explain the process of regeneration in Planaria.How is this process different from reproduction?
|
|
0
|
805
|
March 19, 2018
|
|
Explain various steps of budding in yeast. Ans. Yeast is a unicellular organism
|
|
0
|
17886
|
March 19, 2018
|
|
Explain budding in Hydra with the help of labelled diagrams only
|
|
0
|
1764
|
March 19, 2018
|
|
Name the following: Thread like non-reproductive structures present in Rhizopus
|
|
0
|
4619
|
March 19, 2018
|
|
Name the reproductive parts of an angiosperm. Where are these parts located?
|
|
0
|
930
|
March 19, 2018
|
|
List four categories of contraceptive methods. State in brief two advantages of adopting such preventive methods
|
|
0
|
7664
|
March 19, 2018
|
|
List four points of significance of reproductive health in a society
|
|
0
|
18361
|
March 19, 2018
|
|
Suggest three contraceptive methods to control the size of human population which is essential for the health and prosperity of a country
|
|
0
|
18668
|
March 19, 2018
|
|
Give two reasons for avoiding frequent pregnancies by women
|
|
0
|
9515
|
March 19, 2018
|
|
Trace the path of sperm during ejaculation and mention the gland and their functions associated with the male reproductive system.?
|
|
0
|
657
|
March 19, 2018
|
|
Why is DNA copying an essential part of the process of reproduction?
|
|
0
|
6169
|
March 19, 2018
|
|
Write one main difference between asexual and sexual mode of reproduction
|
|
0
|
1588
|
March 19, 2018
|
|
Would a Planaria cut vertically into two halves regenerate into two individuals? Complete Figure D and E by indicating the regenerated regions
|
|
0
|
5285
|
March 19, 2018
|
|
Give two reasons for the appearance of variations among the progeny formed by sexual reproduction?
|
|
0
|
657
|
March 19, 2018
|
|
Differentiate between self-pollination and cross-pollination?
|
|
0
|
2766
|
March 19, 2018
|
|
What is puberty?
|
|
0
|
3868
|
March 19, 2018
|
|
Identify the following parts of a flower
|
|
0
|
1294
|
March 19, 2018
|
|
In a germinating seed, which parts are known as future shoot and future root?
|
|
0
|
5905
|
March 19, 2018
|
|
Describe the structure of a pollen grain
|
|
0
|
2470
|
March 19, 2018
|
|
Explain the roles of gametes and zygote in sexual reproduction
|
|
0
|
2156
|
March 19, 2018
|
|
Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread
|
|
0
|
720
|
March 19, 2018
|
|
Why cannot fertilisation take place in flowers if pollination does not occur?
|
|
0
|
915
|
March 19, 2018
|
|
What is a clone? Why do offsprings formed by asexual reproduction exhibit remarkable similarity?
|
|
0
|
12232
|
March 19, 2018
|
|
Define the terms unisexual and bisexual giving one example of each
|
|
0
|
11912
|
March 19, 2018
|
|
Reproduction is essentially a phenomenon that is not for survival of an individual but for continuation of a species. Justify
|
|
0
|
12777
|
March 19, 2018
|