
🟢FLASHCARD Genetics - Alleles - Punnett Squares
Flashcard
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a dominant allele?
Back
A dominant allele is a version of a gene that is expressed in the phenotype even when only one copy is present. For example, in pea plants, the tall plant trait (T) is dominant over the short plant trait (t).
2.
FLASHCARD QUESTION
Front
What is a recessive allele?
Back
A recessive allele is a version of a gene that is only expressed in the phenotype when two copies are present. For example, the short plant trait (t) is recessive and is only expressed when the genotype is tt.
3.
FLASHCARD QUESTION
Front
What is a Punnett square?
Back
A Punnett square is a diagram used to predict the genetic makeup of offspring from two parents. It shows all possible combinations of alleles.
4.
FLASHCARD QUESTION
Front
What do the letters in a Punnett square represent?
Back
The letters in a Punnett square represent the possible alleles that offspring can inherit from their parents, with one letter from each parent.
5.
FLASHCARD QUESTION
Front
What is the genotype?
Back
The genotype is the genetic makeup of an organism, represented by the alleles it possesses, such as TT, Tt, or tt.
6.
FLASHCARD QUESTION
Front
What is the phenotype?
Back
The phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.
7.
FLASHCARD QUESTION
Front
What is the purpose of a genetic cross?
Back
The purpose of a genetic cross is to study how traits are inherited and to predict the probability of certain traits appearing in offspring.
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