SFSU BIO 230 Final Exam STUDYGUIDE
ACTUAL QUESTIONS AND CORRECT
ANSWERS
If a silk protein gene from a side is attached to a mammary gland promoter and inserted into
the first cell of a goat embryo, which is correct? - CORRECT ANSWER the silk
protein will be produced in only the mammary cell in the adult goat
Order from smallest to largest:
nucleotide gene, exon, skin cell, and genome - CORRECT ANSWER nucleotide, exon,
gene, genome, and skin cell
approximately what percentage of cancer causing mutations are newly acquired - CORRECT
ANSWER 90%
If a mutagen reacts with DNA in a cell to form a single DNA, after two cell divisions, how
many of their daughter cells are likely to have DNA adduct? - CORRECT ANSWER 1
Most accurate about DNA replication and transcription/translation (central dogma)? -
CORRECT ANSWER DNA replication occurs in some cells, while
transcription/translation happens in all cells
If cell divine via mitosis is like a copy machine, which phase of the cell cycle carry out the
"copy" and "collate" function? - CORRECT ANSWER S & M phase
a slot machine has 10 slots. Each slot has 4 fruits on the spinner (apple, pear, grape, cherry).
According to law of segregation what are the odds of getting cherry? - CORRECT
ANSWER 1/4
which is true for recessive alleles? - CORRECT ANSWER they produce non-
functional proteins or no proteins at all
, horizontal & vertical stripes are controlled by the same genes. Vertical = dominant (H) and
horizontal = recessive (h). What is the genotype of the parent fish with vertical stripes? -
CORRECT ANSWER Hh
Mendel's pea plants have purple flowers (dominant A) or white flowers (recessive a). If a pea
plant has white flowers its genotype is? - CORRECT ANSWER can only be aa
Rabbits of opposite sex- both homozygous- 1 brown & 1 white; how do you find out the
dominant color? - CORRECT ANSWER mate them together and see what color the
offsprings are
23 chromosomes - each homologous pair is from 1 mom and 1 dad. what are the chances you
will get dads? - CORRECT ANSWER 1/4^23
During mitosis, DNA is copied once to produce 2 diploid cells; during meiosis DNA is copied
twice to produce 4 daughter cells - CORRECT ANSWER DISAGREE: during meiosis
DNA is only copied once. Results in diploid (2n) cell to become 4n. After meiosis there are 4
haploid cells
The vast majority of cells in your body are unable to undergo mitosis. - CORRECT
ANSWER AGREE: most cells in an adult body are specialized to no longer divide.
Only stem cells are able to undergo mitosis
The gene for eye color is found in your eye cells - CORRECT ANSWER DISAGREE:
the cells in your body arise from a single cell (zygote). Mitosis rises all cells in the body
except gametes. Mitosis copies genetic material in cells therefore they should all be the same.
All cells will have 2 copies of eye color gene where gametes only have 1.
Cell membrane & ribosomes could be.. - CORRECT ANSWER Either prokaryote or
eukaryote
according to endosymbiosis theory, eukaryotes; mitochondrion are though to have originated
from? - CORRECT ANSWER Free living eukaryotes that had their own ribosome
ACTUAL QUESTIONS AND CORRECT
ANSWERS
If a silk protein gene from a side is attached to a mammary gland promoter and inserted into
the first cell of a goat embryo, which is correct? - CORRECT ANSWER the silk
protein will be produced in only the mammary cell in the adult goat
Order from smallest to largest:
nucleotide gene, exon, skin cell, and genome - CORRECT ANSWER nucleotide, exon,
gene, genome, and skin cell
approximately what percentage of cancer causing mutations are newly acquired - CORRECT
ANSWER 90%
If a mutagen reacts with DNA in a cell to form a single DNA, after two cell divisions, how
many of their daughter cells are likely to have DNA adduct? - CORRECT ANSWER 1
Most accurate about DNA replication and transcription/translation (central dogma)? -
CORRECT ANSWER DNA replication occurs in some cells, while
transcription/translation happens in all cells
If cell divine via mitosis is like a copy machine, which phase of the cell cycle carry out the
"copy" and "collate" function? - CORRECT ANSWER S & M phase
a slot machine has 10 slots. Each slot has 4 fruits on the spinner (apple, pear, grape, cherry).
According to law of segregation what are the odds of getting cherry? - CORRECT
ANSWER 1/4
which is true for recessive alleles? - CORRECT ANSWER they produce non-
functional proteins or no proteins at all
, horizontal & vertical stripes are controlled by the same genes. Vertical = dominant (H) and
horizontal = recessive (h). What is the genotype of the parent fish with vertical stripes? -
CORRECT ANSWER Hh
Mendel's pea plants have purple flowers (dominant A) or white flowers (recessive a). If a pea
plant has white flowers its genotype is? - CORRECT ANSWER can only be aa
Rabbits of opposite sex- both homozygous- 1 brown & 1 white; how do you find out the
dominant color? - CORRECT ANSWER mate them together and see what color the
offsprings are
23 chromosomes - each homologous pair is from 1 mom and 1 dad. what are the chances you
will get dads? - CORRECT ANSWER 1/4^23
During mitosis, DNA is copied once to produce 2 diploid cells; during meiosis DNA is copied
twice to produce 4 daughter cells - CORRECT ANSWER DISAGREE: during meiosis
DNA is only copied once. Results in diploid (2n) cell to become 4n. After meiosis there are 4
haploid cells
The vast majority of cells in your body are unable to undergo mitosis. - CORRECT
ANSWER AGREE: most cells in an adult body are specialized to no longer divide.
Only stem cells are able to undergo mitosis
The gene for eye color is found in your eye cells - CORRECT ANSWER DISAGREE:
the cells in your body arise from a single cell (zygote). Mitosis rises all cells in the body
except gametes. Mitosis copies genetic material in cells therefore they should all be the same.
All cells will have 2 copies of eye color gene where gametes only have 1.
Cell membrane & ribosomes could be.. - CORRECT ANSWER Either prokaryote or
eukaryote
according to endosymbiosis theory, eukaryotes; mitochondrion are though to have originated
from? - CORRECT ANSWER Free living eukaryotes that had their own ribosome
