
Genetics: Punnett Squares and Likelihood
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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7 questions
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1.
FLASHCARD QUESTION
Front
Genotype for a yellow plant (G = green, g = yellow)
Back
gg
2.
FLASHCARD QUESTION
Front
Brown eyes (B) tend to be dominant whereas blue eyes (b) tend to be recessive. Parents with heterozygous genes want to know: what is the likelihood of them having a child with blue eyes?
Back
25%
3.
FLASHCARD QUESTION
Front
Two heterozygous (Tt) tall pea plants are crossed. Tall (T) is dominant. Short (t) is recessive. What is the likelihood of each phenotype?
Back
75% tall and 25% short
4.
FLASHCARD QUESTION
Front
Which of the following would complete this Punnett Square?
aa
,AA
,Aa
Back
aa
5.
FLASHCARD QUESTION
Front
Brown eyes are dominant (B) to blue (b). If Parent A (bb) and Parent B (Bb) have a child, what is the likelihood that the child will have brown eyes?
Back
50%
6.
FLASHCARD QUESTION
Front
Which of the following must be the father's genotype?
RR
,Rr
,rr
Back
Rr
7.
FLASHCARD QUESTION
Front
If the father is homozygous recessive for dimples, what must the mother be for this Punnett Square? Options: Dd (Heterozygous), DD (Homozygous Dominant), dd (Homozygous Recessive)
Back
Dd (Heterozygous)
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