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Scientists call an organism that has two different alleles for a trait a
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
The fruit fly normally has 8 chromosomes in the body cells. Each fruit fly parent would provide ____ to the offspring?
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
Which of the following best represents a genotype?
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
____________ means that both genes of a pair are alike, either both dominant or both recessive
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
In a Punnett square, a capital letter stands for a _____ allele
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
What does that notation TT mean to genetics?
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
A ______________ is a small piece of DNA that tells a cell how to express a trait.
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
A _____________ trait is expressed (seen) only if both genes of a pair code for that trait.
Tt
chromosomes
4 chromosomes
homozygous
hybrid
two dominant genes
recessive
dominant
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