Chapter 12 Chem
The distance between base pairs in DNA is 0.34 nm. How many base pairs are there in a chromosome that is 0.12 m long? (Note: 109 nm = 1 m)
3.5 × 108
Identify the base sequence that is complementary to the following DNA sequence: TTAAGGCC
AATTCCGG
Which scientist is not involved in the discovery of DNA?
Albert Einstein
Sickle cell anemia
I. is caused by mutation in the human gene that codes for a protein expressed in the red blood cells. II. is a genetic disease, inheritable from one's parents. III. can cause red blood cells to become sickle shaped. IV. can clog organs, reducing their blood supplies.
A gene is
a segment of DNA that codes for a specific protein
A protein is a linear polymer composed of
amino acids
A nucleotide consists of which of the following?
bases deoxyribose molecule phosphates
A codon is three
bases in DNA.
What functional groups are present in all amino acids?
carboxylic acid and amine group
Protein enzymes act as
catalysts.
Plasmids are
circular pieces of DNA.
What forces hold the two strands of DNA together?
hydrogen bonds
The monomers of DNA are called
nucleotides
How many DNA bases in any one gene must be changed for a mutation to have a serious effect?
one
The bond that connects two amino acids in a protein is called
peptide bond
The process of copying one DNA to produce an identical copy is called
replication
Deoxyribose is the ________ in DNA.
sugar
The nitrogen-containing bases in DNA are attached by covalent bonds to a
sugar
The backbone structure of DNA is
sugar-phosphate-sugar-phosphate.
