Lesson 4 Flashcards
Heredity and Evolution (45 cards)
is a process by which traits or characteristics are passed on from parents to offspring. In accordance with the old saying “ like begets like” organism can only produce their own kind.
Heredity
the Moravian scientist and Augustinian monk, he examined the physical characteristics traits of pea plants (e.g. Plant size, color and position of flowers). and pondered how these characteristics are passed on from parents to offspring.
Gregor Mendel
He then speculated that the cells of the pea plants contain certain materials that carried the information about these characteristics from generation to generation.
Gregor Mendel
The swiss physiological chemist, obtained a patient bandage filled with pus from a local surgical clinic.
Johann Friedrich Miescher
His goal was to filter the leukocytes (commonly known as white blood cells) from the pus and extract and identify its protein components.
Johann Friedrich Miescher
he examined the specimen, he noticed a particular material in their nuclei that differ in composition and properties to those of proteins. Miescher called this material nuclein, which is now called deoxyribonucleic acid (DNA
Johann Friesdrich Miescher
are within the nucleus of a cell, and they contain genetic information that instructs how an organism develops and functions
DNA
If all the cells of the body are “workers,” then DNA serves as the
Blueprints
instructs cells on how to build and maintain the body properly.
Blueprints
are polymers or complex, large molecules that consist of monomers or small molecules that are linked together in long repeating strands.
DNA molecules
The monomers that make up a DNA polymer are called ?
nucleotides
is a nitrogen- containing molecule that has a similar chemical structure as that of a base
Nucleobase
In DNA, four types of nucleobase exist
Adenine (A)
Tyhmine (T)
Guanine (G)
Cytosine (C)
