Bio 340 Exam 1 Study Guide Questions
with correct answers 2026-2027
Mitosis and Meiosis II - correct answer-
In which nuclear division process do sister chromatids segregate?
chiasmata - correct answer-
At metaphase I, homologous chromosomes are connected only at what structure?
Pairing of homologous chromosomes - correct answer-
Which of the following is unique to prophase I of meiosis?
16 - correct answer-
If a muscle cell of a typical organism has 32 chromosome, how many chromosomes will be in a gamete
of that same organism?
four haploid - correct answer-Meiosis produces daughter cells
All offspring with red eyes - correct answer-In a cross between a homozygous red-
eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome?
All male offspring with white eyes - correct answer-In a cross between a white-
eyed female fruit fly and a red-eyed male fruit fly, what is the expected outcome?
50% - correct answer-Hemophilia is an x-
linked recessive pattern. A carrier woman (one affected X chromosome) married a man with hemophilia
and they have children. What percent of their boy children will be affected?
Both of her X chromosomes would have to have the recessive gene for hemophilia - correct answer-
What would a female genotype have to be for her to have the genetic disease hemophilia?
p=0.5. All daughters will be affected. - correct answer-Congenital generalized hypertrichosis is a an X-
linked dominant disease. If an affected male marries an unaffected female, what is the probability of pa
ssing the hypertrichosis gene to his offspring?
, incomplete dominance - correct answer-
If black and white true breedingBmice are mated and the result is all grey offspring, what inheritance pat
tern would this be indicative of?
multiple alleles and codominance - correct answer-ABO blood groups are an example of
Yes, if each parent carries one i allele - correct answer-
Could an individual with blood type O (genotype ii) be a ligitimate child of parents in which one parent
has type A and the other has type B blood?
Incomplete dominance - correct answer-
ABwhite splashed (Bl/Bl) Andalausian chicken and a black (bl/bl) Andalusian chicken are crossed. The het
erozygotes produced show an intermediate phenotype (blue). What inheritance pattern would this be in
dicative of?
Codominance - correct answer-
A person with only one Sickle Cell Anemia allele and one unaffected allele will have some normal red bl
ood cells and some abnormal. What inheritance pattern would this be indicative of?
DNAB- correct answer-
In Griffith's experiments, what made the harmless R cells grow capsules when exposed to heat-
killed S cells?
Be incorporated into the phage protein coat because some amino acids contain sulfur - correct answer-
In the Hershey-Chase experiment radioactive Sulfur was used to:
Radioactive phosphorus was found inside the cell - correct answer-
The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the bas
is of the finding that:
23 percent - correct answer-
If DNA of a particular species was analyzed and it wasBfound that it contains 27 percent of adenine (A),
what would be the percentage of cytosine (C)?
with correct answers 2026-2027
Mitosis and Meiosis II - correct answer-
In which nuclear division process do sister chromatids segregate?
chiasmata - correct answer-
At metaphase I, homologous chromosomes are connected only at what structure?
Pairing of homologous chromosomes - correct answer-
Which of the following is unique to prophase I of meiosis?
16 - correct answer-
If a muscle cell of a typical organism has 32 chromosome, how many chromosomes will be in a gamete
of that same organism?
four haploid - correct answer-Meiosis produces daughter cells
All offspring with red eyes - correct answer-In a cross between a homozygous red-
eyed female fruit fly and a white-eyed male fruit fly, what is the expected outcome?
All male offspring with white eyes - correct answer-In a cross between a white-
eyed female fruit fly and a red-eyed male fruit fly, what is the expected outcome?
50% - correct answer-Hemophilia is an x-
linked recessive pattern. A carrier woman (one affected X chromosome) married a man with hemophilia
and they have children. What percent of their boy children will be affected?
Both of her X chromosomes would have to have the recessive gene for hemophilia - correct answer-
What would a female genotype have to be for her to have the genetic disease hemophilia?
p=0.5. All daughters will be affected. - correct answer-Congenital generalized hypertrichosis is a an X-
linked dominant disease. If an affected male marries an unaffected female, what is the probability of pa
ssing the hypertrichosis gene to his offspring?
, incomplete dominance - correct answer-
If black and white true breedingBmice are mated and the result is all grey offspring, what inheritance pat
tern would this be indicative of?
multiple alleles and codominance - correct answer-ABO blood groups are an example of
Yes, if each parent carries one i allele - correct answer-
Could an individual with blood type O (genotype ii) be a ligitimate child of parents in which one parent
has type A and the other has type B blood?
Incomplete dominance - correct answer-
ABwhite splashed (Bl/Bl) Andalausian chicken and a black (bl/bl) Andalusian chicken are crossed. The het
erozygotes produced show an intermediate phenotype (blue). What inheritance pattern would this be in
dicative of?
Codominance - correct answer-
A person with only one Sickle Cell Anemia allele and one unaffected allele will have some normal red bl
ood cells and some abnormal. What inheritance pattern would this be indicative of?
DNAB- correct answer-
In Griffith's experiments, what made the harmless R cells grow capsules when exposed to heat-
killed S cells?
Be incorporated into the phage protein coat because some amino acids contain sulfur - correct answer-
In the Hershey-Chase experiment radioactive Sulfur was used to:
Radioactive phosphorus was found inside the cell - correct answer-
The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the bas
is of the finding that:
23 percent - correct answer-
If DNA of a particular species was analyzed and it wasBfound that it contains 27 percent of adenine (A),
what would be the percentage of cytosine (C)?
