GN 311 MODULE 2 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026
In soybeans, dwarf (D) is dominant to tall (d), round (R) is dominant to oval (r), and green (G) is
dominant to brown (g). The genes are linked and the map is given below. Pure-breeding tall, round,
green plants were mated to pure-breeding dwarf, oval, brown plants. The F1 were testcrossed. All loci
are autosomal. The coefficient of coincidence is 1. - Answers tall, oval, brown 3
tall, round, green 1
tall, round, brown 2
tall, oval, green 4
The transfer of DNA between bacterial cells through a cytoplasmic connection is called _____ . -
Answers conjugation
When a bacteriophage inserts its DNA into a bacterial chromosome, the inserted bacteriophage DNA
is called _____ . - Answers prophage
Can the normal F1 female (XHc XhC) have a son with both hemophelia and color blindness? - Answers
yes
What is the genotype of the F1 gamete that created the hairy kneed, straight legged progeny? -
Answers hB
How far apart are the genes? (in centimorgans) - Answers 13
Which side of the map would the A locus be present? - Answers right side
Assuming the B/b locus is in the center, which one is a DCO chromosomes? - Answers A b d
What is the genotype of the F1 gamete that created the gold, tan, ashen progeny? - Answers g t E
Which class (group) represents a single crossover in region 1 (SC1)? - Answers purple
Would you expect more SC1 or SC2 gametes? - Answers SC2
What proportion of the gametes will be Bd? - Answers 0.125
What proportion of the gametes will be ABd? - Answers 0.09125
What proportion of the gametes will be Ad? - Answers 0.2075
What is the probability of straight, bumpy progeny? (R F gametes) - Answers 0.425
What is the probability of straight, fuzzy, variegated progeny? (R f M gamete) - Answers 0.069
What is the probability of ruffled variegated progeny? (gamete r M) - Answers 0.387
What is the genotype for strain 2 for phe? - Answers phe+
What is the genotype for strain 3 for lys? - Answers lys-
What is the result of conjugation between a F+ and F- cell? - Answers two F+ cells
What is the result of conjugation between a Hfr and F- cell? - Answers one Hfr and one F- cell
Where shoud the arrow go for Hfr #4? - Answers between N and P, pointing towards P
What is the result of conjugation between a F' and F- cell? - Answers Two F' cells
Is cell contact required for transformation? - Answers no
Which of the following mutant strains are defective in the same gene as strain 3? (select all that
apply) - Answers 5
What is the frequency of the NN genotype? - Answers 0.16
What is the frequency of the B allele? - Answers 0.475
What is the expected frequency of the Bb genotype in the population? - Answers 0.4988
What proportion of the population is expected to be heterozygous for albinism? - Answers 0.0198
What type of selection is operating here? - Answers directional
What is the frequency of the A allele after selection? - Answers 0.48684
After one round of selection, what will happen to the proportion of AA genotypes in the population? -
Answers increase
What is the frequency of the A allele? - Answers 0.7
What is the frequency of the A allele in the mainland population? - Answers 0.75
What is the frequency of the A allele in the island population? - Answers 0.24
After migration occurs, predict what happens to the proportion of AA genotypes in the island
population? - Answers increases
What is the frequency of the AA genotype on the island after migration? - Answers 0.125
During meiosis when crossing over occurs in a pericentric inversion loop, what percent of the meiotic
products will result in nonviable gametes? - Answers 50%
If an individual is heterozygous for a reciprocal translocation, what percent of their meiotic products
will result in nonviable gametes? - Answers 50%
What type of chromosome aberration is present? - Answers pericentric inversion
In soybeans, dwarf (D) is dominant to tall (d), round (R) is dominant to oval (r), and green (G) is
dominant to brown (g). The genes are linked and the map is given below. Pure-breeding tall, round,
green plants were mated to pure-breeding dwarf, oval, brown plants. The F1 were testcrossed. All loci
are autosomal. The coefficient of coincidence is 1. - Answers tall, oval, brown 3
tall, round, green 1
tall, round, brown 2
tall, oval, green 4
The transfer of DNA between bacterial cells through a cytoplasmic connection is called _____ . -
Answers conjugation
When a bacteriophage inserts its DNA into a bacterial chromosome, the inserted bacteriophage DNA
is called _____ . - Answers prophage
Can the normal F1 female (XHc XhC) have a son with both hemophelia and color blindness? - Answers
yes
What is the genotype of the F1 gamete that created the hairy kneed, straight legged progeny? -
Answers hB
How far apart are the genes? (in centimorgans) - Answers 13
Which side of the map would the A locus be present? - Answers right side
Assuming the B/b locus is in the center, which one is a DCO chromosomes? - Answers A b d
What is the genotype of the F1 gamete that created the gold, tan, ashen progeny? - Answers g t E
Which class (group) represents a single crossover in region 1 (SC1)? - Answers purple
Would you expect more SC1 or SC2 gametes? - Answers SC2
What proportion of the gametes will be Bd? - Answers 0.125
What proportion of the gametes will be ABd? - Answers 0.09125
What proportion of the gametes will be Ad? - Answers 0.2075
What is the probability of straight, bumpy progeny? (R F gametes) - Answers 0.425
What is the probability of straight, fuzzy, variegated progeny? (R f M gamete) - Answers 0.069
What is the probability of ruffled variegated progeny? (gamete r M) - Answers 0.387
What is the genotype for strain 2 for phe? - Answers phe+
What is the genotype for strain 3 for lys? - Answers lys-
What is the result of conjugation between a F+ and F- cell? - Answers two F+ cells
What is the result of conjugation between a Hfr and F- cell? - Answers one Hfr and one F- cell
Where shoud the arrow go for Hfr #4? - Answers between N and P, pointing towards P
What is the result of conjugation between a F' and F- cell? - Answers Two F' cells
Is cell contact required for transformation? - Answers no
Which of the following mutant strains are defective in the same gene as strain 3? (select all that
apply) - Answers 5
What is the frequency of the NN genotype? - Answers 0.16
What is the frequency of the B allele? - Answers 0.475
What is the expected frequency of the Bb genotype in the population? - Answers 0.4988
What proportion of the population is expected to be heterozygous for albinism? - Answers 0.0198
What type of selection is operating here? - Answers directional
What is the frequency of the A allele after selection? - Answers 0.48684
After one round of selection, what will happen to the proportion of AA genotypes in the population? -
Answers increase
What is the frequency of the A allele? - Answers 0.7
What is the frequency of the A allele in the mainland population? - Answers 0.75
What is the frequency of the A allele in the island population? - Answers 0.24
After migration occurs, predict what happens to the proportion of AA genotypes in the island
population? - Answers increases
What is the frequency of the AA genotype on the island after migration? - Answers 0.125
During meiosis when crossing over occurs in a pericentric inversion loop, what percent of the meiotic
products will result in nonviable gametes? - Answers 50%
If an individual is heterozygous for a reciprocal translocation, what percent of their meiotic products
will result in nonviable gametes? - Answers 50%
What type of chromosome aberration is present? - Answers pericentric inversion
