Question

1. Sitka spruce trees oan have different colored reproductive cones. The breeding trees with green cones can be

crossed with true breeding trees with red cones. If these trees followed a codominant pattern of inheritance,

what phenotype would you expect?

offspring with red cones

@ offspring with orange cones

offspring with green cones

offspring with red and green cones

Answer 1

Answer: D. offspring with red and green cones.

Step-by-step explanation:

Codominance is a form of inheritance in which the alleles of a pair of genes in a heterozygous are fully expressed. As a result the offspring phenotype is a combination of the parents' phenotype. Therefore, the trait is neither dominant nor recessive.

In the codominant inheritance, two different versions so called alleles of a gene are expressed and each allele produces a somewhat different protein. Here, both versions influence the genetic trait or determine the characteristics of the genetic condition.