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Tuesday, 16 June 2015

FSc Notes Biology Part 1 Chapter 5 Variety of Life Definitions

FSc Notes Biology Part 1 Chapter 5 Variety of Life Definitions


Binomial:
Linnaeus system of giving each species a scientific name comprising two words is known as binomial nomenclature.

Blood Serum:
Plasma minus proteins which do not coagulate under normal conditions is called blood serum.

Classification:
The arrangement of organisms into groups and subgroups on the basis of similarities is called classification.

Hepatitis:
The inflammation of the liver is called hepatitis.

Homologous Structures:
The structures which have common ancestry are called homologous structures.

Phage Virus:
Bacteriphage or phage virus is virus that infects bacteria.

Retroviruses:
The RNA virus which can convert their single stranded RNA into double stranded DNA are called Retroviruses.

Species:
A species is a group of natural population which can interbreed freely among themselves and produce fertile offspring, but are reproductively isolated from all other such group in nature.

Taxa:
The organisms are grouped into large distinct categories called taxa.

Virus:
Non-cellular infections particle which contains either DNA or RNA, normally enclosed in proteinaceous coat and reproduces only in living cells.

Written by: Asad Hussain.

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