Differentiate between (a) sexual and asexual reproducation (b) binary fission and budding.
Answers
(a) Asexual reproduction
Asexual reproduction spans a variety of methods. The simplest single-celled organisms such as archaea, and bacteria, reproduce by binary fission. In this process, the cells simply divide in half creating, a clone of the parent. This method also holds the benefit of being very quick and energy-efficient. For example, bacteria that reproduce by binary fission can give rise to progeny every few hours. Multiple fission also exists in which, an organism splits into more than one offspring. Certain species of algae and protozoans exhibit multiple fission.
sexual reproduction
Sexual reproduction is the combination of reproductive cells from two individuals to form a third unique offspring. Sexual reproduction produces offspring with a different combination of genes.
sexual reproduction in plants
sexual reproduction in animal
One must understand that sexual reproduction is a lot more complex than asexual reproduction. It includes the production of gametes, which have half the number of chromosomes of all other cells in the organism and the process of meiosis, which produces haploid cells from diploid cells which could lead to the possibility of two copies of a single chromosome crossing over to create a completely new chromosome that contains a new combination of genes. You see, switching from chromosome to chromosome is a good way to ensure that the genes will keep active in a given population. Besides these, factors like gestation period also play an important role in sexual reproduction. The gestation period is the timeframe it requires for the fetus to fully develop either internally (like the mother’s womb) or externally (like an egg).
Answer:
a)-sexual reproduction-the reproduction in which two parents body mate with each other to reproduced new offsprings.
ex-humans.
asexual reproduction-the reproduction in which single parent body divides itself to produce off spring.
ex-amoeba
b)-binary fission-a kind of asexual reproduction in which single parent cell divides into two parts to form offsprings.
ex-amoeba.
budding-it is also a kind of asexual reproduction in which parents body produce a bud which detached in favourable condition and form in new offsprings.
ex-hydra