Bio 230 Exam #1 ACTUAL UPDATED
Exam Questions and CORRECT Answers
Prion - CORRECT ANSWER - misfolded proteins with the ability to transmit their misfolded
shape onto normal variants of the same protein.
-not alive
-Contains no DNA
-Infectious protein
DNA (deoxyribonucleic acid) - CORRECT ANSWER - -2 polynucleotide chains, Sugar-
nucleotide-phosphate
-carries instructions for development, functioning, growth, and reproduction of all known
organisms and some viruses.
-Inside the cell nucleus
-Template for genes
Non-Coding DNA - CORRECT ANSWER - -Does not code for amino acids.
-Commonly known as introns
-99% of DNA
RNA (Ribonucleic acid) - CORRECT ANSWER - - nucleic acid similar to DNA.
-Single-stranded
-Forms in nucleus and moves in cytoplasm
-Made from exons
-Converts DNA into Proteins
Gene - CORRECT ANSWER - -the basic physical and functional unit of heredity
-made from DNA
, Genome - CORRECT ANSWER - -Haploid set of chromosomes in a gamete or each cell of a
multicellular organism.
-All genetic info of organism
-Consists of Both genes and non-coding DNA
- Contains mitochondrial dna and chloroplast dna
Chromosome - CORRECT ANSWER - -DNA molecule w/ part or all of genetic material of
an organism.
-46 total in humans (23 male)-(23 female)=46(offspring)
Cytosine - CORRECT ANSWER - Nucleotide binds with guanine.
A pyrimidine
Carbohydrate - CORRECT ANSWER - Sugar molecules that supply the body w/ energy.
Nucleic acid - CORRECT ANSWER - -Within DNA&RNA
-Macromolecules essential to all known forms of life, composed of nucleotides.
Proteins - CORRECT ANSWER - -amino acid chains, about 20 basic building proteins.
-Do most of the work in cells & are required for structure, function, regulation of body tissues
and organs.
Ex.) leucine, cysteine, organine.
Mutations - CORRECT ANSWER - Change in the DNA sequence that results from mistakes
during cell division, exposure to ionizing radiation and chemicals, or infection by viruses.
Covalent Bonds - CORRECT ANSWER - Strong bonds where 2 or more atoms share one or
more electron pairs.
-very stable
Exam Questions and CORRECT Answers
Prion - CORRECT ANSWER - misfolded proteins with the ability to transmit their misfolded
shape onto normal variants of the same protein.
-not alive
-Contains no DNA
-Infectious protein
DNA (deoxyribonucleic acid) - CORRECT ANSWER - -2 polynucleotide chains, Sugar-
nucleotide-phosphate
-carries instructions for development, functioning, growth, and reproduction of all known
organisms and some viruses.
-Inside the cell nucleus
-Template for genes
Non-Coding DNA - CORRECT ANSWER - -Does not code for amino acids.
-Commonly known as introns
-99% of DNA
RNA (Ribonucleic acid) - CORRECT ANSWER - - nucleic acid similar to DNA.
-Single-stranded
-Forms in nucleus and moves in cytoplasm
-Made from exons
-Converts DNA into Proteins
Gene - CORRECT ANSWER - -the basic physical and functional unit of heredity
-made from DNA
, Genome - CORRECT ANSWER - -Haploid set of chromosomes in a gamete or each cell of a
multicellular organism.
-All genetic info of organism
-Consists of Both genes and non-coding DNA
- Contains mitochondrial dna and chloroplast dna
Chromosome - CORRECT ANSWER - -DNA molecule w/ part or all of genetic material of
an organism.
-46 total in humans (23 male)-(23 female)=46(offspring)
Cytosine - CORRECT ANSWER - Nucleotide binds with guanine.
A pyrimidine
Carbohydrate - CORRECT ANSWER - Sugar molecules that supply the body w/ energy.
Nucleic acid - CORRECT ANSWER - -Within DNA&RNA
-Macromolecules essential to all known forms of life, composed of nucleotides.
Proteins - CORRECT ANSWER - -amino acid chains, about 20 basic building proteins.
-Do most of the work in cells & are required for structure, function, regulation of body tissues
and organs.
Ex.) leucine, cysteine, organine.
Mutations - CORRECT ANSWER - Change in the DNA sequence that results from mistakes
during cell division, exposure to ionizing radiation and chemicals, or infection by viruses.
Covalent Bonds - CORRECT ANSWER - Strong bonds where 2 or more atoms share one or
more electron pairs.
-very stable
