Bio 230 EXAM #1 SFSU (this is the study
guide (given by the professors) for BIOL230
exam #1 at SFSU) Questions With Complete
Solutions
Are hydrogen bonds weak or strong? Correct
Answers Weak
Are prions alive? Correct Answers No, they are
proteins which is just a macromolecule.
Can you draw water molecules correctly? Correct
Answers
Covalent Bond Correct Answers Share electrons,
Strong
Does a substitution mutation always change the
amino acid sequence of the protein? Correct
Answers No because there is a redundancy in the
genetic code
Does an deletion mutation always change the
amino acid sequence of the protein? Correct
Answers Yes
Does an insertion mutation always change the
amino acid sequence of the protein? Correct
Answers Yes
, Does the place in the DNA sequence where the
extra nucleotides are inserted matter? Why?
Correct Answers Depending on where it is placed
will depend on if the amino acid sequence is
changed in the dictionary of genetic code,
sometimes when there's a substitution, due to the
redundancy of the dictionary, the same sequence
can be produced
How are HeLa cells different from the cells in your
own body? Correct Answers They are immortal,
from cervical cancer, can replicate extremely fast,
and they have more than 46 chromosomes.
How are prokaryotic cells and eukaryotic cells
different? Correct Answers Eukaryotic cells have
organelles, a nucleus, linear DNA
Prokaryotic cells have circular DNA and no
organelles
How are prokaryotic cells and eukaryotic cells
similar? Correct Answers they both have cell
membrane, cytoplasm, ribosomes
How can small changes in DNA result in big, small,
or no changes in the physical characteristics of a
living thing? Correct Answers Depending on the
mutation, and how much of the DNA is affected
determines how severe the damage is.
guide (given by the professors) for BIOL230
exam #1 at SFSU) Questions With Complete
Solutions
Are hydrogen bonds weak or strong? Correct
Answers Weak
Are prions alive? Correct Answers No, they are
proteins which is just a macromolecule.
Can you draw water molecules correctly? Correct
Answers
Covalent Bond Correct Answers Share electrons,
Strong
Does a substitution mutation always change the
amino acid sequence of the protein? Correct
Answers No because there is a redundancy in the
genetic code
Does an deletion mutation always change the
amino acid sequence of the protein? Correct
Answers Yes
Does an insertion mutation always change the
amino acid sequence of the protein? Correct
Answers Yes
, Does the place in the DNA sequence where the
extra nucleotides are inserted matter? Why?
Correct Answers Depending on where it is placed
will depend on if the amino acid sequence is
changed in the dictionary of genetic code,
sometimes when there's a substitution, due to the
redundancy of the dictionary, the same sequence
can be produced
How are HeLa cells different from the cells in your
own body? Correct Answers They are immortal,
from cervical cancer, can replicate extremely fast,
and they have more than 46 chromosomes.
How are prokaryotic cells and eukaryotic cells
different? Correct Answers Eukaryotic cells have
organelles, a nucleus, linear DNA
Prokaryotic cells have circular DNA and no
organelles
How are prokaryotic cells and eukaryotic cells
similar? Correct Answers they both have cell
membrane, cytoplasm, ribosomes
How can small changes in DNA result in big, small,
or no changes in the physical characteristics of a
living thing? Correct Answers Depending on the
mutation, and how much of the DNA is affected
determines how severe the damage is.
