Question

closing activity

1. analyze the results - blood type inheritance

the alleles for a and b blood type are codominant. one parent has type a blood (ao) and the other has type b blood (bb).
question:
what is the probability that the offspring will have type ab blood?
fill in the punnett square below using the parent genotypes:

possible offspring genotypes:
a. ab ______ %
b. ab, ____ % bb ____ %
c ab ____ bo ____ %
d ab, __ ao, bo oo __ %

1. gregor mendel studied how traits are passed from parents to offspring. he discovered that each trait is controlled by two alleles — one from each parent. in pea plants, the allele for tall (t) is dominant over short (t).

Explanation:

Step1: Determine parent gametes

The parent with genotype AO can produce gametes A and O. The parent with genotype BB can only produce gamete B.

Step2: Fill the Punnett - square

	A	O
B	AB	BO

Step3: Calculate probability

Out of 4 possible offspring genotypes (2 AB and 2 BO), the probability of having AB blood type is $\frac{2}{4}=0.5$ or 50%.

Answer:

A. AB 50%