Heredity and variations, Biology

Assignment Help:

HEREDITY

1.         Like begets like i.e; every living organism reproduces its own kind. Frog reproduce frogs, rats reproduce rats only.

2.         Heredity includes the characters which are transmitted from generation to generation and these characters are fixed for a particular organism.

VARIATIONS

1.         No two individuals (except the identical twins) exhibit exactly similar characters. Differences are found even between the children of same parents. These are called variations.

2.         The cause of genetic or hereditary variations in organisms is the sexual reproduction. All organisms would have

been of the same type if there was no sexual reproduction. Plants produced through vegetative reproduction are usually of the same type.


Related Discussions:- Heredity and variations

Briefly explain lichens organism, Briefly explain Lichens organism? Lic...

Briefly explain Lichens organism? Lichens are unique organisms consisting of a symbiotic relationship between a fungus and a photosynthetic organism. They represent a type of s

What is phytates, Q. What is Phytates? Phytates are widely distributed...

Q. What is Phytates? Phytates are widely distributed in seeds of vegetables, fruits and grains. Unrefined cereals and millets are the richest sources of phytates. Refined or

AUTOCHORY, ALL ABOUT AUTOCHORY?HOW IT WORKS

ALL ABOUT AUTOCHORY?HOW IT WORKS

Of what substance is the plant cell wall made, Q. Of what substance is the ...

Q. Of what substance is the plant cell wall made? Of which monomer is it made? The plant cell wall is made of cellulose. Cellulose is a polymer whose monomer is glucose. There

Function of amino acids, FUNCTIO N OF AMINO ACIDS Proteins are poly...

FUNCTIO N OF AMINO ACIDS Proteins are polymers of amino acids. Glycine form porphyrin nucleus in chlorophyll and heme (= haem) proteins like haemoglobin and cytochrome

What is mucoperiosteal flap, What is mucoperiosteal flap Silk is easy t...

What is mucoperiosteal flap Silk is easy to handle, ties with a slip knot, and is relatively inexpensive compared with other nonabsorbable suture materials currently available.

What is eutrophication, What is eutrophication" describe its consequences o...

What is eutrophication" describe its consequences on the life of plants and animals living in such waters. Why is oxygen depletion in a eutrophicated water-body faster at nigh

Where does calvin cycle take place in chloroplast, Where does Calvin cycle ...

Where does Calvin cycle take place in chloroplast? Explain the cycle. a) Where is electron transport system operative in mitochondria? b) Explain the system highlighting the

Explain about s-shaped incision for a mini pedicle flap, Q. Explain about S...

Q. Explain about S-Shaped incision for a mini pedicle flap? The S - shaped incision is indicated where a papilla needs to be developed and was first described by Palacci. This

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