BIO 1050 EXAM 2 QUESTIONS AND
ANSWERS
In this question nucleus refers to the nucleus of a cell, not the nucleus of an atom.
Which of the following has the items listed in the correct order from smallest to largest
for eukaryotes? - Correct Answers -nucleotide, codon, gene, chromosome, genome,
nucleus
Lactic acid is sometimes called lactate. Fermentation - Correct Answers -can occur in
humans, bacteria and yeast.
Rice has 12 types of chromosomes. How many double helices of DNA are in 12 pairs
(one from each parent) of duplicated chromosomes (in G2 after DNA replication)? -
Correct Answers -48
The enzyme family tRNA synthetase - Correct Answers -adds the correct amino acid to
each tRNA
Tyrosine is a hydrophobic amino acid. Where would you find it? - Correct Answers -
touching the fatty acids tails of the phospholipid bilayer
Transcription does NOT require - Correct Answers -recharging the tRNA with tRNA
synthetase
A carboxyl group is COOH. A peptide bond is found - Correct Answers -between a
carboxyl and amino group on two amino acids
Gene expression is regulated in both prokaryotes and eukaryotes. There are similarities
and differences. A difference is that, unlike in eukaryotes, in prokaryotes gene
expression - Correct Answers -uses operons as a regulatory units
Antigens - Correct Answers -can be the proteins on pathogens that infect the body
Proteins - Correct Answers -determine the functions of cells
Both DNA replication and transcription - Correct Answers -involve complimentary base
pairing of nitrogenous bases
ANSWERS
In this question nucleus refers to the nucleus of a cell, not the nucleus of an atom.
Which of the following has the items listed in the correct order from smallest to largest
for eukaryotes? - Correct Answers -nucleotide, codon, gene, chromosome, genome,
nucleus
Lactic acid is sometimes called lactate. Fermentation - Correct Answers -can occur in
humans, bacteria and yeast.
Rice has 12 types of chromosomes. How many double helices of DNA are in 12 pairs
(one from each parent) of duplicated chromosomes (in G2 after DNA replication)? -
Correct Answers -48
The enzyme family tRNA synthetase - Correct Answers -adds the correct amino acid to
each tRNA
Tyrosine is a hydrophobic amino acid. Where would you find it? - Correct Answers -
touching the fatty acids tails of the phospholipid bilayer
Transcription does NOT require - Correct Answers -recharging the tRNA with tRNA
synthetase
A carboxyl group is COOH. A peptide bond is found - Correct Answers -between a
carboxyl and amino group on two amino acids
Gene expression is regulated in both prokaryotes and eukaryotes. There are similarities
and differences. A difference is that, unlike in eukaryotes, in prokaryotes gene
expression - Correct Answers -uses operons as a regulatory units
Antigens - Correct Answers -can be the proteins on pathogens that infect the body
Proteins - Correct Answers -determine the functions of cells
Both DNA replication and transcription - Correct Answers -involve complimentary base
pairing of nitrogenous bases
