BIO 340 EXAM 1 STUDY GUIDE QUESTIONS
WITH DETAILED VERIFIED ANSWERS
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
WITH DETAILED VERIFIED ANSWERS
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
