Problem 46) achondroplasia is the most common mendelian form of genetic dwarfism and is inherited as an autosomal dominant disorder. it has been found that new achondroplasia mutations are usually inherited from the father, particularly older fathers. why might new mutations arise in older males?

I think the answer is: Older men produce sperm that have originated from more prior mitotic cell divisions in the germ line, so there are more opportunities for mutations to occur.

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.

the answer is d p: cell, q: organ, r: organ system, s: tissue