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Worksheets8b quiz review
Total questions: 25
Worksheet time: 23mins
If a pea plant were homozygous recessive for height, how would its alleles be represented?
tt
tT
Tt
TT
When the heterozygous condition results in traits that are blended or intermediate (not dominant or recessive), it is _______.
codominance
dominance
Mendelian
incomplete dominance
What goes in box 15
aabb
AABB
aaBB
AAbb
The genotypes Tt, Mm, and Gg would be described as __________.
heterozygous
homozygous
The same gene can come in different versions, the different versions of a gene are called:
Alleles
Chromosomes
Traits
Another word for heterozygous is
purebred
hybrid
dominant
recessive
The ___________ states that a recessive allele is only expressed when a dominant allele is not present.
Law of Dominance
Law of Inheritance
What are the possible genotypes for this cross?
TT=25%, Tt=50%, tt=25%
all tall
TT=75%, tt=25%
Tt=100%
In cacti, long arms (A) are dominant to short arms (a). Suppose 2 heterozygous cacti are crossed. What percentage of their offspring are expected to have short arms?
0%
25%
75%
100%
In a dihybrid cross, if one parent is heterozygous for both traits (RrYy) and the other parent is homozygous recessive for both traits (rryy), what will be the genotype of the offspring?
The genotype of the offspring will be RrYy, Rryy, rrYy, or rryy.
RRyy
RrYY
rrYY
In a dihybrid cross, if one parent is homozygous dominant for both traits (BBYY) and the other parent is homozygous recessive for both traits (bbyy), what will be the genotype of the offspring?
BBYY
bbYY
BbYy
BbYY
What is the phenotypic ratio of a dihybrid cross between two individuals who are heterozygous for both traits?
9:3:3:1
1:1:1:1
4:4:2:2
6:2:2:1
A red flowering plant is crossed with a yellow flowering plant. The offspring are all red with yellow edges. The inheritance pattern is:
codominance
complete dominance (Mendelian)
incomplete dominance
multiple alleles
polygenic inheritance
A red flowering plant is crossed with a blue flowering plant. The offspring are all purple. The inheritance pattern is:
codominance
complete dominance (Mendelian)
incomplete dominance
multiple alleles
polygenic inheritance
Mice can have either black or red eyes, which is controlled by a single gene.
codominance
complete dominance (Mendelian)
incomplete dominance
multiple alleles
polygenic inheritance
Blue frogs are crossed with black frogs, resulting in frogs with blue and black spots.
codominance
complete dominance (Mendelian)
incomplete dominance
multiple alleles
polygenic inheritance
Two pink snapdragons are crossed. This is an incompletely dominant trait. What percent of the offspring would you expect to have pink flowers?
25%
50%
75%
100%
Cross a man with AB blood and a woman with O blood. What are the possible phenotypes of the offspring?
A or O
A or B
B or O
A, B or O
What type of inheritance pattern does this show?
codominance
complete dominance (Mendelian)
incomplete dominance
multiple alleles
polygenic inheritance
Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).
Cross a red flower with a speckled flower. What is the phenotypic ratio?
2 red, 2 speckled
2 red, 2 blue
2 blue, 2 speckled
In cattle red coats are represented as RR, and white coats are represented as WW.
What is the genotype for Roan color?
RR
RW
WW
A woman with curly hair and a man with straight hair produced a child with wavy hair:
Incomplete dominance
Codominance
Complete dominance
