Question

Which statement best describes an understanding of genetics that would be missing without the work of Mendel?
The DNA codes for traits would not be known.
The protein codes for traits would not be known.
Some alleles are dominant, and some alleles are recessive.
Offspring receive two copies of each allele from each parent.

Answer 1

Answer:

Some alleles are dominant, and some alleles are recessive.

Explanation:

For a recessive allele to generate a recessive phenotype, the individual must exhibit two copies from each parent. An individual with a dominant and one recessive allele for a gene will exhibit the dominant phenotype.  A cross between a homozygous recessive and homozygous dominant will always articulate the dominant phenotype, while still exhibiting a heterozygous genotype.  

Answer 2

Some alleles are dominant, and some alleles are recessive