Types of Inheritance

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•
Biology
•
10th Grade
•
Hard
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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 color flowers result from a cross between a red flower (RR) and a white flower (WW) in snapdragons?
Back
Pink (RW) flowers are produced due to incomplete dominance.
3.
FLASHCARD QUESTION
Front
What is codominance?
Back
A form of inheritance where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.
4.
FLASHCARD QUESTION
Front
What is an example of codominance in chickens?
Back
In chickens, black and white feather colors are codominant; heterozygous chickens (BW) have speckled black and white feathers.
5.
FLASHCARD QUESTION
Front
What does it mean when alleles are expressed equally?
Back
This indicates codominance, where both alleles contribute to the phenotype without blending.
6.
FLASHCARD QUESTION
Front
What is the result of a cross between two heterozygous individuals for a trait showing incomplete dominance?
Back
The offspring will show a phenotypic ratio of 1:2:1 (one homozygous dominant, two heterozygous, one homozygous recessive).
7.
FLASHCARD QUESTION
Front
What is a polygenic trait?
Back
A trait that is controlled by multiple genes, leading to a wide range of phenotypes, such as skin color or height.
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