BIO 207 EXAM 3 UPDATED Exam
Questions and CORRECT Answers
genetics - CORRECT ANSWER - study of gene expression and genetic material
genome - CORRECT ANSWER - sum total of genetic material (DNA/ RNA) in a cell
chromosome - CORRECT ANSWER - DNA complexed with protein for organization
shape of prokaryotic chromosome - CORRECT ANSWER - circular
shape of eukaryotic chromosome - CORRECT ANSWER - linear
gene - CORRECT ANSWER - section of DNA that codes for a protein (sequence of
DNA)
what type of bonds/ monomers make up proteins - CORRECT ANSWER - peptide bonds
between amino acids
what makes up a gene - CORRECT ANSWER - nucleotides
allele - CORRECT ANSWER - variation of a gene
genotype - CORRECT ANSWER - the genetic makeup/ sequence of an organism
phenotype - CORRECT ANSWER - traits that come from genetic makeup (visible traits)/
expression of the genes
, how many genes do small viruses have - CORRECT ANSWER - 4-5
how many genes does E. coli have? - CORRECT ANSWER - 4,000
how many genes in a human cell - CORRECT ANSWER - 25,000
how many chromosomes do humans have? - CORRECT ANSWER - 46 (23 different
types, 2 copies of each)
bacterial chromosomes characteristics - CORRECT ANSWER - circular, double stranded,
don't have histone proteins but have proteins similar to histones (different structure, but similar
function, self-replication
plasmid - CORRECT ANSWER - small molecules of DNA in the cytoplasm, readily
shared between cells, non-essential--give extra survival advantage/ virulence/ Ab resistance/
fertility factors/ self replicating
full name for DNA - CORRECT ANSWER - deoxyribonucleic acid
what are the different types of nucleotides - CORRECT ANSWER - adenine, thymine,
cytosine, guanine
difference between DNA and RNA nucleotides - CORRECT ANSWER - RNA:
-ribose instead of deoxyribose
-uracil instead of thymine
what are nucleotides made of - CORRECT ANSWER - 3 nitrogenous bases, 5 carbon
sugar, 3 phosphate groups
Questions and CORRECT Answers
genetics - CORRECT ANSWER - study of gene expression and genetic material
genome - CORRECT ANSWER - sum total of genetic material (DNA/ RNA) in a cell
chromosome - CORRECT ANSWER - DNA complexed with protein for organization
shape of prokaryotic chromosome - CORRECT ANSWER - circular
shape of eukaryotic chromosome - CORRECT ANSWER - linear
gene - CORRECT ANSWER - section of DNA that codes for a protein (sequence of
DNA)
what type of bonds/ monomers make up proteins - CORRECT ANSWER - peptide bonds
between amino acids
what makes up a gene - CORRECT ANSWER - nucleotides
allele - CORRECT ANSWER - variation of a gene
genotype - CORRECT ANSWER - the genetic makeup/ sequence of an organism
phenotype - CORRECT ANSWER - traits that come from genetic makeup (visible traits)/
expression of the genes
, how many genes do small viruses have - CORRECT ANSWER - 4-5
how many genes does E. coli have? - CORRECT ANSWER - 4,000
how many genes in a human cell - CORRECT ANSWER - 25,000
how many chromosomes do humans have? - CORRECT ANSWER - 46 (23 different
types, 2 copies of each)
bacterial chromosomes characteristics - CORRECT ANSWER - circular, double stranded,
don't have histone proteins but have proteins similar to histones (different structure, but similar
function, self-replication
plasmid - CORRECT ANSWER - small molecules of DNA in the cytoplasm, readily
shared between cells, non-essential--give extra survival advantage/ virulence/ Ab resistance/
fertility factors/ self replicating
full name for DNA - CORRECT ANSWER - deoxyribonucleic acid
what are the different types of nucleotides - CORRECT ANSWER - adenine, thymine,
cytosine, guanine
difference between DNA and RNA nucleotides - CORRECT ANSWER - RNA:
-ribose instead of deoxyribose
-uracil instead of thymine
what are nucleotides made of - CORRECT ANSWER - 3 nitrogenous bases, 5 carbon
sugar, 3 phosphate groups
