SFSU Bio 230 Final Questions and
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? - (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 - (answer)nucleotide, exon, gene, genome, and skin cell
approximately what percentage of cancer causing mutations are newly acquired - (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? - (answer)1
Most accurate about DNA replication and transcription/translation (central dogma)? - (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? - (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? - (answer)1/4
which is true for recessive alleles? - (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? - (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? - (answer)can only be aa
Rabbits of opposite sex- both homozygous- 1 brown & 1 white; how do you find out the dominant color?
- (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? - (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 - (answer)DISAGREE: during meiosis DNA is only copied once. Results in diploid
(2n) cell to become 4n. After meiosis there are 4 haploid cells
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? - (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 - (answer)nucleotide, exon, gene, genome, and skin cell
approximately what percentage of cancer causing mutations are newly acquired - (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? - (answer)1
Most accurate about DNA replication and transcription/translation (central dogma)? - (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? - (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? - (answer)1/4
which is true for recessive alleles? - (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? - (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? - (answer)can only be aa
Rabbits of opposite sex- both homozygous- 1 brown & 1 white; how do you find out the dominant color?
- (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? - (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 - (answer)DISAGREE: during meiosis DNA is only copied once. Results in diploid
(2n) cell to become 4n. After meiosis there are 4 haploid cells
