BIO 340 EXAM 1 STUDY GUIDE ACCURATE QUIZZES
WITH DETAILED, VERIFIED ANSWERS; A GRADE;
2026
A molecule of RNA (ribonucleic acid) contains the bases _______
- correct answer- adenine, guanine, cytosine, and uracil
A nucleotide is made of _______. - correct answer- sugar +
phosphate + nitrogen base
A person with only one Sickle Cell Anemia allele and one
unaffected allele will have some normal red blood cells and
some abnormal. What inheritance pattern would this be
indicative of? - correct answer- Codominance
A recessive trait will be observed in individuals that are
________ for that trait. - correct answer- homozygous
A white splashed (Bl/Bl) Andalausian chicken and a black (bl/bl)
Andalusian chicken are crossed. The heterozygotes produced
show an intermediate phenotype (blue). What inheritance
pattern would this be indicative of? - correct answer-
Incomplete dominance
,ABO blood groups are an example of - correct answer-
multiple alleles and codominance
Alternate forms of a gene are called _______. - correct answer-
alleles
At metaphase I, homologous chromosomes are connected only
at what structure? - correct answer- chiasmata
Besides growth, what must happen before a cell divides? -
correct answer- DNA replication.
Congenital generalized hypertrichosis is a an X-linked dominant
disease. If an affected male marries an unaffected female, what
is the probability of passing the hypertrichosis gene to his
offspring? - correct answer- p=0.5. All daughters will be
affected.
Consider a diploid organism. What is the phenotypic ratio
expected to be observed in the offspring produced by two
homozygous recessive parents? - correct answer- 0
dominant: 1 recessive
, Consider a plant character, leaf shape. In a tree species, it has
been determined that leaf shape is controlled by a single gene
segregating two alleles, and having rounded leaves is dominant
to elongated leaves.
An experiment that crossed a rounded-leaf plant with an
elongated-leaf plant, both from true-breeding lines, found the
following results: all F1 offspring have rounded leaves. F2
offspring, which came from selfing of F1 individuals, also all have
rounded leaves.
A hypothesis suggests that the law of _______ is most likely
violated in this mating. Fill in the blank. - correct answer-
Segregation
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? - correct answer- Yes, if each
parent carries one i allele
Daughter cells produced by mitosis _______. - correct answer-
are genetically identical to the parent cell
WITH DETAILED, VERIFIED ANSWERS; A GRADE;
2026
A molecule of RNA (ribonucleic acid) contains the bases _______
- correct answer- adenine, guanine, cytosine, and uracil
A nucleotide is made of _______. - correct answer- sugar +
phosphate + nitrogen base
A person with only one Sickle Cell Anemia allele and one
unaffected allele will have some normal red blood cells and
some abnormal. What inheritance pattern would this be
indicative of? - correct answer- Codominance
A recessive trait will be observed in individuals that are
________ for that trait. - correct answer- homozygous
A white splashed (Bl/Bl) Andalausian chicken and a black (bl/bl)
Andalusian chicken are crossed. The heterozygotes produced
show an intermediate phenotype (blue). What inheritance
pattern would this be indicative of? - correct answer-
Incomplete dominance
,ABO blood groups are an example of - correct answer-
multiple alleles and codominance
Alternate forms of a gene are called _______. - correct answer-
alleles
At metaphase I, homologous chromosomes are connected only
at what structure? - correct answer- chiasmata
Besides growth, what must happen before a cell divides? -
correct answer- DNA replication.
Congenital generalized hypertrichosis is a an X-linked dominant
disease. If an affected male marries an unaffected female, what
is the probability of passing the hypertrichosis gene to his
offspring? - correct answer- p=0.5. All daughters will be
affected.
Consider a diploid organism. What is the phenotypic ratio
expected to be observed in the offspring produced by two
homozygous recessive parents? - correct answer- 0
dominant: 1 recessive
, Consider a plant character, leaf shape. In a tree species, it has
been determined that leaf shape is controlled by a single gene
segregating two alleles, and having rounded leaves is dominant
to elongated leaves.
An experiment that crossed a rounded-leaf plant with an
elongated-leaf plant, both from true-breeding lines, found the
following results: all F1 offspring have rounded leaves. F2
offspring, which came from selfing of F1 individuals, also all have
rounded leaves.
A hypothesis suggests that the law of _______ is most likely
violated in this mating. Fill in the blank. - correct answer-
Segregation
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? - correct answer- Yes, if each
parent carries one i allele
Daughter cells produced by mitosis _______. - correct answer-
are genetically identical to the parent cell
