GENETICS EXAM 1 COMPLETE COURSE
REVIEW GUIDE
◉ Does every gene code for a protein?
Answer: NO! tRNA, rRNA, mRNA
◉ When studying a genetic cross, the second generation following
the initial cross is identified by which of the following?
a. P generation
b. F1 generation
c. F2 generation
d. F3 generation
e. P3 generation
Answer: F2 generation
◉ A true bredding line of green pod pea plants is crossed with a
true-breeding line of yellow pod plants. All of their offspring have
green pods. From this information, it can be stated that the green
color is_____.
a. recessive
,b. dominant
c. subservient
d. blended
e. non of the answers are correct
Answer: dominant
◉ When Mendel crossed two plants that were heterozygous for a
single trait, what was the phenotypic ratio of their offspring?
a. 1 : 2 : 1
b. 9 : 3 : 3 : 1
c. 3 : 1
d. 7 : 4
e. varied depending on the trait
Answer: 3:1
◉ An individual who has two identical alleles for a trait is said to be
_____.
a. homozygous
b. heterozygous
c. isozygous
, d. a variant
Answer: homozygous
◉ The genetic composition of an individual is called its _____.
a. phenotype
b. genotype
c. hybrid
d. dominance
e. non of the answers are correct
Answer: genotype
◉ The likelihood that the observation variation from the expected is
due to random chance is called the _____.
a. P value
b. Goodness of fit
c. degree of freedom
d. X value
e. none of the answers are correct
Answer: P value
REVIEW GUIDE
◉ Does every gene code for a protein?
Answer: NO! tRNA, rRNA, mRNA
◉ When studying a genetic cross, the second generation following
the initial cross is identified by which of the following?
a. P generation
b. F1 generation
c. F2 generation
d. F3 generation
e. P3 generation
Answer: F2 generation
◉ A true bredding line of green pod pea plants is crossed with a
true-breeding line of yellow pod plants. All of their offspring have
green pods. From this information, it can be stated that the green
color is_____.
a. recessive
,b. dominant
c. subservient
d. blended
e. non of the answers are correct
Answer: dominant
◉ When Mendel crossed two plants that were heterozygous for a
single trait, what was the phenotypic ratio of their offspring?
a. 1 : 2 : 1
b. 9 : 3 : 3 : 1
c. 3 : 1
d. 7 : 4
e. varied depending on the trait
Answer: 3:1
◉ An individual who has two identical alleles for a trait is said to be
_____.
a. homozygous
b. heterozygous
c. isozygous
, d. a variant
Answer: homozygous
◉ The genetic composition of an individual is called its _____.
a. phenotype
b. genotype
c. hybrid
d. dominance
e. non of the answers are correct
Answer: genotype
◉ The likelihood that the observation variation from the expected is
due to random chance is called the _____.
a. P value
b. Goodness of fit
c. degree of freedom
d. X value
e. none of the answers are correct
Answer: P value
