Properties of H2O
Property of water allows it to have a very high boiling point
Hydrogen bonding
Enzymes are composed of what organic molecule?
Proteins
Contains the bases of adenine, uracil, cytosine, and guanine
RNA
How does meiosis differ from mitosis?
Meiosis produces 4 genetically different haploid cells. Mitosis produces 2 genetically identical diploid cells.
Which of the following is considered the basic unit of heredity?
Genes
What causes water's high heat capacity?
Cohesion
Enzyme names always end with the suffix
-ase
The Process of using mRNA to make a protein is called what??
Translation
What is crossing over in simple terms?
An exchange of information between 2 homologous chromosome which creates a new combination of genes. How blond hair combines with blue eyes or brown eyes.
What is the shape of a DNA molecule called?
Double helix
Which phase of water in the most densest?
Liquid
The part of the enzyme where the substrate binds is called the:
Active Site
Brings the amino acids to the ribosome
tRNA
What type of cell undergoes meiosis?
Gamete cells
True or False: Diseases cannot be inherited through genes.
False
What is the best description of a base?
A compound or solution that releases OH− or takes up H+
Which of the following is true of enzymes?
1. They increase the rate of reaction by stabilizing the transition state
2. They raise activation energy to shift the equilibrium to favor the products
3. The lower activation energy by altering the products of a reaction
1 Only
A change in one of the nucleotides of DNA results in what?
Mutation
Cells starting mitosis and meiosis begin with one set (haploid) or two sets (diploid) of chromosomes?
2 sets = diploids
What is the abbreviation for deoxyribonucleic acid?
DNA
It is a hot summer day. When you touch a cold glass of water, how is heat energy transferred?
From your hand to the glass by conduction
Without the presence of enzymes, the reactions necessary to sustain life would require what in order to occur?
Higher temperatures
What amino acid is represented by the codon CAG?
Glutamine
If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism?
26
How many pairs of chromosomes are in a human being?
23