Cell division Flashcards
The study of chromosome number, structure,
function, and behavior in relation to gene
inheritance, organization and expression
Cytogenetics
- Father of modern taxonomy.
- Laid the foundations for the modern scheme
of binomial nomenclature.
Carl Linnaeus
-The father of Genetics.
-Published the results of his
investigations of the inheritance of
“factors” in pea plants.
Gregor Mendel
These are the Mendelian Laws of Inheritance
- Law of Segregation
2. Law of Independent Assortment
The term genetics was first coined by?
W. Bateson in 1905
The word genetics was derived from the Greek root ’Gen’ which means
‘to become’ or ‘to grow into’.
refers to the transmission of characters from parents to their offspring.
Heredity
The variations are mainly of two types namely
Hereditable (genetic) Non Hereditable ( environmental )
Works in flowering plants
Hugo de Vries
He used maize and peas, He also worked out law of hereditary
Carl Correns
He worked out law of hereditary using peas.
Von Tschermak.
-Pangenesis theory
- Preformatonism – there
is a preformed bodies
Homunculus
Aristotle
This theory states that a miniature human called ‘homunculus’ was
already preformed in the egg and sperm.
Preformation Theory
it states that egg or sperm cells do not contain miniature human but that the gametes contained undifferentiated living substance capable of forming the organized body after fertilization.
Theory of Epigenesis
This theory states that a new character once acquired by an individual shall pass on to its progeny.
Theory of Acquired characters
