Use Probability for Inheritance Predictions
Biology · Flashcards
BIOLOGY · FLASHCARDS
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QUESTION
What is
P
(
A
A
b
b
)
P(AAbb)
P
(
AA
bb
)
in the cross
A
a
B
b
×
A
a
B
b
AaBb \times AaBb
A
a
B
b
×
A
a
B
b
(independent assortment)?
QUESTION
What is the probability rule that justifies multiplying probabilities across different genes in a dihybrid cross?
QUESTION
What is
P
(
both children are
a
a
)
P(\text{both children are } aa)
P
(
both children are
aa
)
if each child has
P
(
a
a
)
=
1
4
P(aa)=\frac{1}{4}
P
(
aa
)
=
4
1
and births are independent?
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ANSWER
1
16
\frac{1}{16}
16
1
. Independent events multiply:
1
4
×
1
4
\frac{1}{4} \times \frac{1}{4}
4
1
×
4
1
.
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