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In certain species of pine trees, short needles (S) are
dominant to long needles (s). Both parents are
heterozygous for having short needles. Create a Punnett
Square to determine, wha tis the probability of an
offspring having long needles?
BRAINLIEST TO CORRECT
Heterozygous mean a dominant and a recessive gene.
S (dominant) = short needles
s (reccessive) = long needles
Parent 2 S s
Parent 1
S
s
S s
S SS Ss
s Ss ss
For an offspring to have long needles, both alleles have to be s ( recessive allele for long needle) or ss . That's only occurs in 1/4 pairing so the probability is 25%
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