8/17/25, 4:10 PM BIOL 2300 Exam 2: Quiz
BIOL 2300 Exam 2 – Quiz Questions & Verified Answers |
Complete Study Guide EXAM 2025-2026
An individual has the 85%
following genotype. Gene
loci (A) and (B) are 15 cM
apart. If a testcross is
performed on this individual
what percentage of
gametes will be either aB or
Ab?
When considering different repulsion, trans configuration
alleles located upon the
same chromosome, the
arrangement in which each
chromosome contains one
wild type and one mutant
allele is called _______ or
_.
Describe the cytological homologous chromosomes pair side by side
observation that suggests
that crossing over occurs
during
the first meiotic prophase.
/ 1/27
,8/17/25, 4:10 PM BIOL 2300 Exam 2: Quiz
You've discovered a new 12%
plant species in which
green fruit color (g) is
recessive to yellow fruit color
(G), and
long fruit shape (l) is
recessive to round fruit
shape (L).
The genes for fruit color and
shape are
located on the same
chromosome and are 24
m.u. apart. If you take a
plant with the genotype
Gl/gL and cross it with
another plant with the
genotype gl/gl, what
percentage of the offspring
will be yellow and round?
Genes X, Y, and Z are 1.3%
linked. Crossover
gametes between
genes X and Y are
observed with a frequency of
26%, and
crossover gametes between
genes Y and Z are observed
with a frequency of 5%.
What is the expected
frequency of double
crossover gametes among
these genes? (Hints: 1) the
probability of one single
crossover AND another single
crossover
happening at the same time
reminds me of a rule I once
/ 2/27
, 8/17/25, 4:10 PM BIOL 2300 Exam 2: Quiz
heard of.)
How do we know that the genes segregate together during gamete formation
specific genes are linked on
a single chromosome, in
contrast to being located on
separate
chromosomes?
/ 3/27
BIOL 2300 Exam 2 – Quiz Questions & Verified Answers |
Complete Study Guide EXAM 2025-2026
An individual has the 85%
following genotype. Gene
loci (A) and (B) are 15 cM
apart. If a testcross is
performed on this individual
what percentage of
gametes will be either aB or
Ab?
When considering different repulsion, trans configuration
alleles located upon the
same chromosome, the
arrangement in which each
chromosome contains one
wild type and one mutant
allele is called _______ or
_.
Describe the cytological homologous chromosomes pair side by side
observation that suggests
that crossing over occurs
during
the first meiotic prophase.
/ 1/27
,8/17/25, 4:10 PM BIOL 2300 Exam 2: Quiz
You've discovered a new 12%
plant species in which
green fruit color (g) is
recessive to yellow fruit color
(G), and
long fruit shape (l) is
recessive to round fruit
shape (L).
The genes for fruit color and
shape are
located on the same
chromosome and are 24
m.u. apart. If you take a
plant with the genotype
Gl/gL and cross it with
another plant with the
genotype gl/gl, what
percentage of the offspring
will be yellow and round?
Genes X, Y, and Z are 1.3%
linked. Crossover
gametes between
genes X and Y are
observed with a frequency of
26%, and
crossover gametes between
genes Y and Z are observed
with a frequency of 5%.
What is the expected
frequency of double
crossover gametes among
these genes? (Hints: 1) the
probability of one single
crossover AND another single
crossover
happening at the same time
reminds me of a rule I once
/ 2/27
, 8/17/25, 4:10 PM BIOL 2300 Exam 2: Quiz
heard of.)
How do we know that the genes segregate together during gamete formation
specific genes are linked on
a single chromosome, in
contrast to being located on
separate
chromosomes?
/ 3/27
