Origin and Chemistry of Life
How old is Earth?
4.6 billion years
Who was the first scientist to observe cells?
Robert Hooke
Yeast use this process to divide.
Budding
Gregor Mendel
Darwin studied this bird at the Galapagos Islands
Finches
What is the smallest unit of life?
Cells
Antonie von Leeuwenhoek coined this term before we switched to using "microorganisms".
animalcules
In this cell division process, somatic cells reproduce identical copies of themselves.
Mitosis
Dominant alleles will ______ recessive alleles.
Mask, hide
It is the ancestor that has led to the evolution of all living beings on Earth.
LUCA
Which atoms were present in early Earth?
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus, Sulfur
What are the three components of Cell Theory?
1) Cells are the basic unit of life.
2) All cells come from preexisting cells.
3) All organisms are made of cells.
Sperm and egg are examples of this cell type.
Gametes
DAILY DOUBLE!
The complete set of alleles for a gene
Genotype
The Endosymbiont Theory depicts these two organelles as primitive prokaryotes
Chloroplast and Mitochondria
What are our macromolecules?
Nucleic Acids, Proteins, Lipids, Carbohydrates
What is the difference between prokaryotes and eukaryotes?
Eukaryotes have nuclei and prokayotes do not.
Programmed cell death is known as
apoptosis
This feature of the pea plant, known as _________________, unveiled recessive traits
Self-fertilization
This mode of evolution introduces new alleles into the species' population
Mutations
What "cell-like" structure facilitated the formation of life?
Liposomes
This cellular structure found in animals is responsible for degrading materials.
lysosome
The steps of the mitotic stage in the cell cycle are
Prophase, Metaphase, Anaphase, Telophase
The Law of Segregation allows for the separation of __________ during gamete production.
alleles
This discipline looks at the traits of fetuses during development and can be used to establish common ancestry.
Embryology