By the end of prophase, each of the following has occurred except
question 7 options:

tighter coiling of the chromosomes

breaking down of the nuclear envelope

disappearing of the nucleolus

lining up of chromosomes in the cell

The correct answer is lining up of chromosomes in the cell.

Explanation:

The first subphase of mitosis is called prophase in which chromosome become condensed and the breakdown of the nuclear membrane occur along with disappearance of nucleolus.

    But the lining up of chromosome occur during metaphase in which chromosomes are specifically arranged in a equatorial region or metaphase plate.

they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b

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.