Phenotypes
Pea Plants
Punnett Squares
Population Genetics
Pictures
100
A purebred red rose (RR) is crossed with a purebred white rose (rr).
What color will the offspring be?
red
100
A pea plant with the genotype Gg for seed color is a...
a. purebred dominant
b. hybrid
c. purebred hybrid
d. purebred recessive
b. hybrid
100
A purebred red rose (RR) is crossed with a purebred white rose (rr).
Draw a Punnett square for the cross.
R R
r Rr Rr
r Rr Rr
100
What type of inheritance is controlled by several genes, such as height and skin color?
a. multiple alleles
b. polygenic inheritance
c. incomplete dominance
b. polygenic inheritance
100
What is the dominant phenotype, based on this picture?
white sheep
200
If one parent contributes an A allele and the other parent contributes an O allele, what blood type will the child have?
a. A
b. B
c. AB
d. O
a. A
200
Pea plants with flowers at the end of the vines (ee) are recessive. What is the genotype for the dominant plants with flowers at the middle of the vines?
EE
200
A purebred white rabbit (bb) is crossed with a hybrid brown rabbit (Bb).
Draw a Punnett square for the cross.
b b
B Bb Bb
b bb bb
200
Genetic drift would most likely occur in which of the following populations?
a. a greenhouse of snapdragons
b. an orchard of thousands of orange trees
c. a petting zoo with a dozen pygmy goats
d. a pea plant farm
c. a petting zoo with a dozen pygmy goats
200
How many hybrids are in the third generation?
3
300
Mythical griffins show incomplete dominance in coat color.
Write an example of a cross between two purebred griffins and describe the offspring's coat color.
A purebred red griffin and a purebred yellow griffin produce orange baby griffins.
300
If two hybrid tall pea plants (Tt) are crossed, what is the chance that one of the offspring is short?
25% or 1/4
300
Hybrid purple peacocks (CrCb) show incomplete dominance.
Draw a Punnett square for the cross of two purple peacocks.
Cr Cb
Cr CrCr CrCb
Cb CrCb CbCb
300
What is the process by which organisms with certain adaptations survive to pass on their traits to a greater number of offspring?
a. natural selection
b. genetic drift
c. artificial selection
d. population genetics
a. natural selection
300
This type of inheritance is most likely...
a. simple dominance
b. multiple alleles
c. incomplete dominance
b. multiple alleles
400
Calico cats are orange and black spotted. This is a kind of codominance. What are two possible phenotypes for the parents of a calico kitten?
purebred orange and purebred black
calico and purebred orange
calico and purebred black
technically, only female cats can be calico
400
Most traits in pea plants show...
a. simple dominance
b. codominance
c. incomplete dominance
d. polygenic inheritance
a. simple dominance
400
Two parents with blood type AB have four children with all four blood types.
Draw a Punnett square for family.
400
A population of foxes migrate to an arctic region. What will happen to the number of foxes with thicker fur?
it will increase
400
How can you get a poodle in the third generation from a cross of two golden doodles?
Both golden doodles gave only their poodle genes to that puppy.
500
Hybrid purple peacocks (CrCb) show incomplete dominance.
What is the phenotype for a purebred CbCb peacock?
blue
500
What is the full name of the scientist who studied pea plants?
Gregor Mendel
500
Make up a situation for the following cross
Two hybrid green alligators are crossed. The offspring have a 3/4 chance of being green (AA or Aa), and 1/4 chance of being brown (aa).
500
What is the difference between natural selection and genetic drift?
Natural selection increases the number of helpful genes. Genetic drift randomly changes the number of certain genes.
500
Draw a picture of an organism showing codominance. Explain the phenotype and genotype.
