Question

sece how the inherited. LAW OF INDEPENDENT ASSORTMENT explains a lot about how traits are 10. If both parents are 1Ai and Rhsl, what fraction of their offspring can be expected be have Type A blood and Rh- phenotypes ather 11 ather 12 C nither A. 1/4 T-TALL, Y-YELLOW C. 116 D.316 . Genes may consist of alternative forms dominant or recessive. only one copy of each gene. This is the Law of ?Make a Punnett spare to show thr parents how this disurder dan h, i dented sice The inheritance pathern of 2 dafferent genes (fhower color and plant height, for example shows us that these traits are PKU. Not all traits are inlverited strictly acconding to the Law of Dominance. We leamed about you tell 1.10) A family comes into your oflice for gemetic oummeling The huaband an the allle fo blood and the hushand hes type All Hood. Their son has Type Oblood and is Rh Let's see how much we've learned so CHAPTER QUESTIONS L.1) A man and woman are both affected by an autosomal dominant disonder that is lethal in the embryonic period in homozygotes. On average, what proportion of their live-boen oflspring We herry off to CHAPTER 2 REFERENCES B. 1/2 Christ, Shawn E."Asky0m

Answer 1

Ans 10 : D) 3/16

Both the parents have I^Ai Rh+/- genotype , so the gametes will be same for both : I^A+ , I^A- , i⁺ and i^-.

The gametes are crossed and the results according to the punnett square suggest that there are 3 out of 16 offsprings that will have phenotype A- blood type.

So the fraction is 3 /16.

Punett square is attached below ...