Honors Biology Unit 4 Exam Study
Guide
made up of repeating nucleotides; control the cell's activities; makes up the organelles
called CHROMATIN! - Answer️️ -DNA
one 5 carbon sugar (deoxyribose), one phosphate group, one nitrogen base -
Answer️️ -nucleotide
Four nitrogen/nitrogenous b...
What makes up the "rungs" of a double helix? - Answer✔️✔️-paired nitrogen bases which
are held together by nitrogen bonds
"weak bonds" - Answer✔️✔️-nitrogen bonds
nitrogen bases ALWAYS pair in a certain way/the same way - Answer✔️✔️-base pairing
What is another name for base pairing? - Answer✔️✔️-complimentary pairing
DNA makes up___. - Answer✔️✔️-chromatin
Code for making proteins; these proteins determine the activities and physical features
of the cell - Answer✔️✔️-DNA
carries genetic information... SAYS EVERYTHING ABOUT US/ANY ORGANISM! -
Answer✔️✔️-DNA
a series of 3 nucleotides are codes for one amino acid (and a bunch of amino acids go
into making a protein!!) - Answer✔️✔️-codon/triplet
guarantees that the exact order of nitrogen bases in a molecule of DNA will be
preserved and passed from one generation of cells to the next - Answer✔️✔️-DNA
replication
How many strands of DNA/chromatin/chromosomes do humans have in EVERY cell of
their body? - Answer✔️✔️-46
process of copying the DNA code; new strands of DNA are made from a supply of
nucleotides that float freely in the cell - Answer✔️✔️-replication
sites at which separation and replication occurs - Answer✔️✔️-replication forks
An increase in cell volume causes an increase in the need for ___ and the excretion of
___. - Answer✔️✔️-nutrients; wastes
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