Answer:
OBJECTIVE:
1. Solve problems involving Mendelian Genetics
DIRECTION:
Solve the dihybrid cross following the step-by-step procedure:
Sample Problem Word Problem
1. Read the problem carefully.
Given that axial flower position (A) is
dominant over terminal flower position (a)
while round seed shape(R) is dominant
wrinkled seed shape (r).
A garden pea plant with heterozygous gene
pair for both axial flower and round seed is
crossed with a garden pea plant with
heterozygous gene pair for both axial flower
and round seed. What are the possible
offspring of the cross?
Given that green pod color (G) is
dominant over yellow pod color (g) while
inflated pod (I) is dominant over
constricted pod (i)
A garden pea plant with heterozygous
gene pair for both green and inflated pod
is cross with a garden pea plant with
homozygous gene pair for green and
heterozygous gene pair for inflated pod.
Is there a possibility that a garden pea
plant with a green and inflated pod is
produced from the cross?
2. Identify the parents from the problem then write the GENOTYPE of the
Parents.
PARENT 1: garden pea plant with
heterozygous gene pair for both axial flower
and round seed
(GENOTYPE: AaRr)
PARENT 2: garden pea plant with
heterozygous gene pair for both axial flower
and round seed
PARENT 1:
_____________________________________
(GENOTYPE:___________)
PARENT 2:
_____________________________________
(GENOTYPE:___________)