Heredity questions part 1

Flashcard
•
Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What did Mendel wonder about the pea plants?
Back
Mendel wondered why the pea plants had different characteristics.
2.
FLASHCARD QUESTION
Front
What sometimes happened to the traits of pea plants according to Mendel?
Back
According to Mendel, the traits of pea plants sometimes differed from their parents.
3.
FLASHCARD QUESTION
Front
What happens to Mendel's ratios if an F2 generation contains just 3 or 4 offspring?
Back
If an F2 generation contains just 3 or 4 offspring, the ratios might not match.
4.
FLASHCARD QUESTION
Front
In what conditions does a recessive trait appear?
Back
A recessive trait appears when both alleles are recessive.
5.
FLASHCARD QUESTION
Front
What does 'homozygous' mean?
Back
Homozygous means having the same alleles.
6.
FLASHCARD QUESTION
Front
What is a dominant trait?
Back
A dominant trait is one that is expressed when at least one dominant allele is present.
7.
FLASHCARD QUESTION
Front
What is an allele?
Back
An allele is a variant form of a gene that can produce different traits.
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