Question

Differentiate between:
(a)Asexual & sexual reproduction (b)Gametes and zygote

Answer 1

(a) Following are the difference between Asexual and Sexual reproduction:
$$\begin{array}{cccc}& \text{Asexual reproduction}& & \text{Sexual reproduction}\\ \text{i.}& \text{It involves only one parent.}& i& \text{It involves two parents.}\\ \text{ii.}& \text{Gametes are not formed.}& ii& \text{Gametes are formed.}\\ \text{iii.}& \text{No fertilisation occurs.}& iii& \text{Fertilisation takes place.}\\ \text{iv.}& \text{Binary fission in amoeba, budding in hydra are different types of asexual reproduction.}& iv& \text{External fertilisation in frogs, internal fertilisation in organisms like chickens, humans are all examples of sexual reproduction.}\end{array}$$
(b) Following are the difference between Gametes and Zygote:
$$\begin{array}{cccc}& \text{Gametes}& & \text{Zygote}\\ \text{i.}& \text{The specialised cells produced in sexual reproduction are called gametes, e.g. sperm (male) and ovum (female).}& i& \text{A zygote is the product of the fusion of male gamete and female gamete during sexual reproduction.}\\ \text{ii.}& \text{Gametes are unfertilised reproductive cells.}& ii& \text{Zygote is a fertilised egg.}\\ \text{iii.}& \text{No new individuals are formed from gametes.}& iii& \text{New individuals are formed from zygote.}\end{array}$$