Animal reproduction, Biology

Assignment Help:

Animal Reproduction -

Reproduction is the ability to produce new organism of its own type. It is meant to increase their number.

Reproduction includes -

(i) Replication of DNA                                          

(ii) Cell division

(iii) Formation of reproduction units                      

(iv) Division into offsprings.

Animals reproduce mainly in two ways -

S.NO.

ASEXUAL

SEXUAL

 

1.

 

2.

 

3.

 

4.

 

5.

 

6.

 

7.

 

8.

 

9.

 

10.

 

It is uniparental

 

Gametes are not formed

 

Reproductive organs are not needed

 

No fertilisation

 

Offsprings are similar to parent

 

New characters do not appear

 

No variation

 

No evolution

 

Definite process

 

Generation leads to extinction

 

uni / biparental

 

formed

 

needed.

 

fertilisation occur

 

different

 

appear

 

variation present

 

evolution takes place

 

Indefinite process

 

Not so


Related Discussions:- Animal reproduction

What does an anther have on it, What does an anther have on it? The ant...

What does an anther have on it? The anther is the part of the flower that keeps the pollen. This and the filament both make up the stamen.

Study giude, how many atoms are H2SO4 compound

how many atoms are H2SO4 compound

Bacterial diseases-brucellosis, Brucellosis Brucellosis among cattle, ...

Brucellosis Brucellosis among cattle, buffaloes, sheep, goats, pigs produces heavy economic losses due to abortions in late pregnancy, infertility and reduction in productivit

What are the obstructive lesions of aorto pulmonary window, what are the Ob...

what are the Obstructive Lesions of Aorto Pulmonary Window? These lesions can be divided into two groups: 1) Ventricular outflow obstructive lesions i.e. Aortic Stenosis (AS) P

Prevention of outbreak in salmonellosis, Q. Prevention of Outbreak in salmo...

Q. Prevention of Outbreak in salmonellosis? Prevention of Outbreak: The control of food borne salmonella infection requires the following: 1. Preventing food contamination

Elaboration of yolk- reproduction, Normal 0 false false fal...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Tetanus, Tetanus This is an infectious, non-febrile disease of animals...

Tetanus This is an infectious, non-febrile disease of animals and man, and is characterised by spasmodic tetany and hyperaesthesia. The causative agent is Clostridium tetani,

What is the name of process of deposition, Thickness and toughness of plant...

Thickness and toughness of plant walls are increased by deposition within original cellulose wall, of a substance called as lignin. Process of deposition is called: a) Lignific

Oogenesis., write breif notes on oogenesis

write breif notes on oogenesis

Purpose of evaluation, PURPOSE OF EVALUATION: The purpose of  evaluati...

PURPOSE OF EVALUATION: The purpose of  evaluation of service is to answer the questions, "To what extent and how well did the programme meet the objectives of  the service?'

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd