Growth and development of multi cellular organisms, Biology

Growth and development of multi cellular organisms

The normal growth and development in all multicellular organisms occur in a programmed manner.
The new born babies have no teeth, teeth formation starts from 4th or 5th month.
For example when a seed germinates it produces roots first and after sometime it gives branches, flowers and fruits.
All the plants do not give flower all times.
Some plants complete their life cycle in few months and some plants take more than 6 months and some other have different duration of flowering.
It must be interesting to note that these changes in the plants or animals in different stages of the life cycle occur as if some instructions are given to these organisms from time to time.
There is a set of genetic programmes which is operated to carry out specific functions at specific time in the life cycle of living organisms.

Related Discussions:- Growth and development of multi cellular organisms

Primary producers - biotic components , Primary producers - Biotic Componen...

Primary producers - Biotic Components The major primary producers of aquatic ecosystems (freshwater and marine) are various species of algae. In terrestrial ecosystems the ma

Agarose gel electrophoresis, Agarose gel electrophoresis is the method to ...

Agarose gel electrophoresis is the method to analyze the size of the DNA (or RNA) fragments. In the presence of an electric field, bigger fragments of DNA move through a gel slowe

Why are shapes of squamous cells different, How do the cheek and onion cell...

How do the cheek and onion cells visually resemble one another, and why are shapes of squamous cells so different than the onion cells?

Requirements and recommended dietary allowances (rda), Define Requirements ...

Define Requirements and Recommended Dietary Allowances (RDA)? What do we mean by requirements and RDA? The requirement level is the amount of nutrient needed to be absorbed to

Explain the bunsen burner, Explain the Bunsen Burner? It is a type of g...

Explain the Bunsen Burner? It is a type of gas burner that gives very hot flame by allowing air to enter at the base and mix with the gas. It is used - (a) For sterilizing i

Define interaction of vitamin d with other nutrients, Define Interaction of...

Define Interaction of Vitamin D with other Nutrients? Vitamin D metabolism is inter-related with calcium, phosphorous, vitamin K and iron. Let us discuss each of these:

Explain about chlorophylls - natural pigments, Explain about Chlorophylls ...

Explain about Chlorophylls Chlorophylls are used as colourants in a range of foodstuffs and both natural chlorophyll (containing magnesium as the central metal ion) and 'coppe

Explain the cultural practices of single crop, Explain the Cultural Practic...

Explain the Cultural Practices of single crop Continuous cultivation of a single crop over years on the same site causes accumulation of a particular group of microbes, which d

DNA TESTING, HOW BORN THE BABY

HOW BORN THE BABY

Kuch, how vagina is inserted in cock

how vagina is inserted in cock

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages