Incomplete and CoDominance
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
What is incomplete dominance?
Back
A genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two traits.
2.
FLASHCARD QUESTION
Front
What is codominance?
Back
A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that shows both traits equally.
3.
FLASHCARD QUESTION
Front
What phenotype results from a cross between a straight-haired (SS) and a curly-haired (CC) parent?
Back
Wavy hair (SC) due to incomplete dominance.
4.
FLASHCARD QUESTION
Front
If two parents with wavy hair (SC) have children, what is the probability of having another child with wavy hair?
Back
50% chance of having a child with wavy hair (SC).
5.
FLASHCARD QUESTION
Front
What is the phenotype of a plant with genotype TT?
Back
Tall plant, as T (tall) is dominant.
6.
FLASHCARD QUESTION
Front
What is the phenotype of a plant with genotype SS?
Back
Short plant, as S (short) is recessive.
7.
FLASHCARD QUESTION
Front
In a Punnett square, what does a 1:2:1 ratio indicate?
Back
It indicates incomplete dominance, showing one homozygous dominant, two heterozygous, and one homozygous recessive.
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