Predict the possible genotypes of offspring of a couple who both are heterozygous for free earlobes. The trait for free earlobes is carried on the dominant allele while the trait for attached earlobes is carried on the recessive allele

What will be an ideal response?


The dominant allele, E, is for the free earlobe trait. The recessive allele, e, is for the attached earlobe trait. Both parents are heterozygous for free earlobes; thus, the genotype for each parent is Ee. The possible genotypes of their offspring are EE (1/4, or 25%), Ee (2/4, or 50%), and ee (1/4, or 25%).

Anatomy & Physiology

You might also like to view...

Bacillus anthracis can form endospores

Indicate whether the statement is true or false

Anatomy & Physiology

________ is a small connective tissue peg that contains nerve endings and blood vessels

A) Hair medulla B) Hair bulb C) Hair papilla D) Hair matrix E) Hair cuticle

Anatomy & Physiology

In the Krebs cycle, an acetyl fragment is broken down to CO2 and H ions

Indicate whether the statement is true or false.

Anatomy & Physiology

The joint between the first costal cartilage and the sternum, is a ________, whereas the other costal cartilages are joined to the sternum by ________ joints

A) synchondrosis; synovial B) syndesmosis; synovial C) synostosis; cartilaginous D) symphysis; cartilaginous E) synarthrosis; cartilaginous

Anatomy & Physiology