Patterns of inheritance

Scientists crossed two plants that were heterozygous for two different genes. Both plants had the same genotype, $D d E e$ .

The genotypes and ratios of the offspring resulting from this cross were:

\begin{array}{ccccc} \text{DDee} & : & \text{DdEe} & : & \text{ddEE} \\ 1 & : & 2 & : & 1 \end{array}

Which option could explain these observations?

Autosomal linkage

Crossing over

Epistasis

Mutation

Scientists crossed two plants that were heterozygous for two different genes. Both plants had the same genotype, $D d E e$ .

The genotypes and ratios of the offspring resulting from this cross were:

\begin{array}{ccccc} \text{DDee} & : & \text{DdEe} & : & \text{ddEE} \\ 1 & : & 2 & : & 1 \end{array}

Which option could explain these observations?

Autosomal linkage

Crossing over

Epistasis

Mutation

Patterns of inheritance Questions