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Biology review
What is a somatic cell?
A mutation in a cell
Where does the Krebs cycle occur?
In the mitochondria
What kind of cell division occurs in human skin?
Mitosis
What process produces genetically identical daughter cells and results in growth?
Meiosis
In which stage of the cell cycle does DNA replicate?
S phase
During which stage of mitosis does a cleavage furrow form?
Telephase
When a cell has a complete set of chromosomes, is it referred to as 1N or 2N?
2N
How many divisions occur in the process of mitosis
1
How many daughter cells are present after mitosis?
2
What do plant cells form that animal cells don't?
Cell plate
What describes the union of a sperm and an egg?
Fertilization
What term describes the chromosome number of an egg cell?
Diploid
What term describes the chromosome number of a zygote?
Hapliod
What is a homologous chromosome?
Matching chromosome after DNA replication
What kind of bonds hold together a DNA molecule?
Hydrogen
What kind of mutation has occurred if a base has been removed?
Deletion
What organelle makes proteins?
Ribosomes
What is the chromosomal difference between male and female?
Female- XX male- XY
What does "thymine-guanine-thymine-cytosine" describe?
A sequence
What is absolute dating?
A specific date
What is a physical characteristic of islands that increase their rate of speciation?
They are isolated
What kind of rock do fossils form in?
Sedimentary
What is the definition of evolution?
Change
Approximately how old is the earth?
4.5 billion years
_______ is when one species looks like another
Mimicry
What is another term for"survival of the fittest"?
Natural selection
Why do snake molt?
To grow larger
How did oxygen enter the blood of a fish?
Through the gills
What is the function of a gizzard?
To crush food
What organ allows mammals to control body fluids and adapt to dry desert conditions?
The kidneys
What is the primary organof the integumentary system?
The skin
What is the "master gland" located at the base of the brain?
The pituitary gland
What hormone does the pancreas create?
Insulin