DNA
What shape is DNA
A double helix
What is the primary mechanism of evolution?
Natural selection
What is the main difference between the end results of mitosis and meiosis?
Mitosis: Produces two identical diploid daughter cells.
Meiosis: Produces four unique haploid daughter cells.
What are cells made of?
Organelles
what shape is a punnett square?
square
What are the nitrogen bases
A, T, C, G
Can an organism choose to mutate when its environment changes?
No
What is the 3rd phase in Meiosis?
Anaphase 2
What organelle is the powerhouse of the cell?
the mitochondria
What does heterozygous mean?
inheriting two different versions alleles of a specific gene from your biological parents ex (Ff)
What is it called when DNA is tightly coiled
A chromosome
Can a helpful adaptation in one environment be a disadvantage in another?
Yes
In Meiosis what is the stage AFTER the cell begins to become 2?
Cytokinesis
What organelle makes plants green?
Chloroplasts
In a breed of dogs, black fur (F) is dominant over grey fur (f).
Both the mother dog and the father dog are Heterozygous (Ff) What is the probability (in percentage) of having a puppy with grey fur (ff)?
25% of the puppies will have grey fur
Who discovered DNA
Friedrich Miescher
How does a single mutation become a common adaptation for a whole species?
Natural selection
How many rounds of cell division occur in Mitosis?
one
What is the jelly-like substance that fills the cell
Cytoplasm
what is a genotype
The instructions in your DNA usually written as letters, such as (BB), (Bb), or (bb).
What is DNA made of
Nucleotides
What is the fundamental unit of heredity?
A gene
What does the term "diploid" mean?
Diploid means having two sets of chromosomes
Where are proteins made?
Ribosomes
In pea plants, tall stems(T) are dominant over short stems (t)
A homozygous tall plant (TT) is crossed with a short plant (tt) What percentage of the offspring will be tall?
100% will be tall