Dominant alleles are represented by
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1 point
upper case letters
lower case letters
numbers
none of the above
upper case letters
Which combination of alleles below represents a recessive trait?
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1 point
RR
Rr
rR
rr
rr
The study of genes, gene variation and heredity is called
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Chemistry
Engineering
Genetics
Forensics
Genetics
The physical appearance of an organism is represented by the _______.
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genotype
phenotype
Z-type
None of the above
phenotype
True or False:
Genes carry instructions that determine a person's traits. These instructions are found on alleles.
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1 point
True
False