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Heredity Part 1 Concept Review
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by John Lundy
| 16 Questions
Note from the author:
An assignment to insure understanding of how to use a Punnett square.
The outlined content above was added from outside of Formative.
1
1 pt
In fruit flies Red eyes (wild) are dominant to white eyes (Sepia). Perform a cross between a White eyed female and a homozygous Red eyed male.
2
1 pt
For the above cross, the genotypes of the offspring would be?
RR 100%
RR 75%
RR 50 %
RR 25%
RR 0%
Rr 100%
Rr75%
Rr 50%
Rr25%
Rr 0%
rr 100%
rr 75%
rr 50%
rr 25%
rr 0%
3
1 pt
For the above cross, the Phenotype of the offspring would be?
Red Eyed 100%
Red Eyed 75%
Red Eyed 50%
Red Eyed 25%
Red Eyed 0%
White Eyed 100%
White Eyed 75%
White Eyed 50%
White Eyed 25%
White Eyed 0%
5
1 pt
You take two of the F! offspring of the above cross and cross them. Create the punnett square for the cross below.
6
1 pt
For the above cross, the genotypes of the offspring would be?
RR 100%
RR 75%
RR 50 %
RR 25%
RR 0%
Rr 100%
Rr75%
Rr 50%
Rr25%
Rr 0%
rr 100%
rr 75%
rr 50%
rr 25%
rr 0%
7
1 pt
For the above cross, the Phenotype of the offspring would be?
Red Eyed 100%
Red Eyed 75%
Red Eyed 50%
Red Eyed 25%
Red Eyed 0%
White Eyed 100%
White Eyed 75%
White Eyed 50%
White Eyed 25%
White Eyed 0%
10
1 pt
Which is one of the seven characteristics that Mendel
observed in pea plants?
a. flower size
b. seed texture
c. leaf shape
d. stem color
11
1 pt
Imagine you are performing a cross involving seed color in garden pea plants. What F1 offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green.
a. 100 percent yellow-green seeds
b. 100 percent yellow seeds
c. 50 percent yellow, 50 percent green seeds
d. 25 percent green, 75 percent yellow seeds
12
1 pt
The observable traits expressed by an organism are
described as its ________.
a. phenotype
b. genotype
c. alleles
d. zygote
13
1 pt
A recessive trait will be observed in individuals that
are ________ for that trait.
a. heterozygous
b. homozygous or heterozygous
c. homozygous
d. diploid
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