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Basic Genetics Crossword

Across
To indicate a pea plant that is short, we would use a(an) _______ case letter.
One of a pair of genes that occupies the same position on homologous chromosomes.
A genotype with two different alleles.
Mendel's 4 conclusions form the basis of what is now called Mendelian ___________.
The observable expression of an organism's genes - what I see.
Down
An organism that always passes a specific trait on to its offspring is called __________ (two words).
A genotype in which both alleles are identical.
Allele that will not determine the phenotype unless the genotype is homozygous for that allele.
What Mendel conducted experiments on (two words).
An allele that will determine the phenotype, even if just one is present.
Two-letter set(code) that represents the alleles an organism possesses for a certain trait - the DNA coding.
Number of years Mendel conducted his experiments.