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31 questions
fertilization
genotype
phenotype
homozygous
The brown eye trait is dominant over blue eyes. Which of the following genotypes best represents the phenotype for blue eyes?
BB
Bb
bb
bB
Each organism has 2 alleles for a particular trait. Where do these two alleles come from?
One from each parent
Both from one parent
Alleles do not come from parents
The kidney
What is the genotype for #15?
rr
Rr
RR
rR
In a pedigree, what shape represents a male?
circle
square
triangle
diamond
A woman has type AB blood and her husband has type O blood. The doctor tells them their child has type O blood. She thinks this is very strange. Why?
She can't be the mother of a type O child.
Her husband can't be the father of a type O child.
Type O blood is very rare.
There's nothing strange about it.
A white flowered plant is crossed with a red flowered plant. The two traits have codominance. What color are the offspring?
Red
White
Red and white spotted
Pink
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
0%
25%
50%
75%
Brown eyes are dominant over blue eyes. What is the probability that the offspring will have brown eyes in this cross?
25%
50%
75%
100%
Fill in the Yellow Box
AA
Aa
aa
What is the mother's genotype?
DD
Dd
dd
What are the possible combinations of offspring between a female pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white
all Pp
all PP
PP and Pp
Pp, and pp
Is this trait dominant or recessive?
What is the genotype of the affected son and daughter at the bottom of this pedigree?
What is the relationship between person 1 in the first generation and person 2 in the third generation?
Father and Son
Father and Daughter
Grandfather and Granddaughter
Uncle and Niece
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