What are the possible genotypes for a cross between two heterozygous individuals (Tt x Tt)?
Punnett Squares

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Science
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7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
TT = 25%, Tt = 50%, tt = 25%.
2.
FLASHCARD QUESTION
Front
What inheritance pattern is observed when both alleles are expressed equally, such as in black and white checkered chickens?
Back
Codominance.
3.
FLASHCARD QUESTION
Front
In a Punnett square, if B = brown fur and b = white fur, what is the probability of obtaining a white fur offspring from a cross of Bb x Bb?
Back
50%.
4.
FLASHCARD QUESTION
Front
What is the term for a genetic condition where both alleles for a gene are expressed, resulting in both traits being visible?
Back
Codominance.
5.
FLASHCARD QUESTION
Front
What is the term for a genetic condition where the phenotype is a blend of the two parental traits, such as pink flowers from red and white parents?
Back
Incomplete dominance.
6.
FLASHCARD QUESTION
Front
What does a Punnett square illustrate in genetics?
Back
It shows the possible genotypes of offspring from a genetic cross.
7.
FLASHCARD QUESTION
Front
What is the expected phenotypic ratio for a monohybrid cross between two heterozygous individuals?
Back
3:1 ratio of dominant to recessive phenotypes.
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