Flashcards in Ch. 3 Questions Deck (22)
Biological traits are controlled by individual factors, rather than by a single hereditary agent. This idea is referred to as
The genetic code is a set of instructions for the production or synthesis of
The portion of the genome that codes for a protein is called a(n)
______ are responsible for a cell's chemical reactions.
What are the correct pairings of the four bases found in DNA?
A-T, T-A, C-G, G-C
Most traits of complex organisms are
The AB blood type is produces by
Two codominant alleles
The process of cell division that results in two copies of the original cell
"Junk DNA" is thought to
Regulate gene function and activity level
How many chromosomes in total do humans have?
46 or 23 pairs
The formation of gametes is called
The human genome is approximately how many base pairs long?
Proteins are the basic building blocks of an organism's cell
Genetic code is found in the nucleus of cells
If the sequence of bases on one side of a DNA helix is known, then the sequence on the other side can be correctly predicted.
A codon consists of a four-base sequence that codes for a specific amino acid
A person with a pair of non-matching alleles is considered to be homozygotic
Dominant alleles are better than recessive alleles
Sperm is an example of a gamete
Different versions of a single gene are called alleles
Over 90% of the human genome are non-coding genes