contestada

Base your answers to the following questions on the diagram below which shows a model of human inheritance.



The parent whose genes are aa …

A
must be dominant

B
has a straight hairline

C
has a peaked hairline

Base your answers to the following questions on the diagram below which shows a model of human inheritance The parent whose genes are aa A must be dominant B ha class=

Respuesta :

aa is the recessive trait - peaked hairline.

This cross is of a parent who has a straight hairline with one who has a peaked hairline - all the kids are heterozygous (Aa) and all will phenotypically have a straight hairline.