Show:
Mitosis
Time Line
Chromosome
Cell Cycle
Eras
100
What happens during Anaphase?
What is chromosomes seperate
100
A Geological Time Scale is divided up into two main sections, what are these?
What is Era & Periods
100
What is the length of a DNA strand?
What is 6 ft. long
100
List the stages of the cell cycle
What is G1, S, G2, MITOSIS
100
This era started about 4.6 billion years ago. This era is known as the "era of cells"
What is Pre Cambrian
200
This is an ACRONYM used to remember the steps of mitosis
What is IPMAT
200
List the four eras in order from oldest to newest
What is Pre Cambrian, Paleozoic, Mesozoic Cenozoic.
200
What are chromosomes made up of ?
What is DNA, genes, histones,
200
What happens during G1?
What is organelles reproduce
200
This era is the present time. It is ruled by mammals.
What is Cenozoic.
300
During Metaphase chromosomes line up in which direction
What is vertical
300
Which class of scientist studies fossils?
What is paleontologist
300
what is the purpose of histones?
What is to help the DNA condense into chromosomes.
300
What happens during S phase?
What is DNA replicates
300
This era was ruled by reptiles of all sizes. This era is commonly depicted with dinosaurs
What is Mesozoic
400
These attach to kinetechores which then pull apart chromosomes
What is spindle fibers
400
What did Alfred Wegner hypothesize?
What is the earth was one giant land mass called Pangea
400
Chromatids are held together by?
What is centromeres
400
What happens during G2?
What is the cell matures and prepare for mitosis
400
This era was ruled by Marine Life and then towards the middle and end of the era it was ruled by plant life.
What is Paleozoic
500
What is the main of idea of Mitosis
What is a new cell is formed from a pre-existing cell
500
How long ago did the Pre-Cambrian Era begin?
What is 4.6 billion years ago
500
at the end of mitosis one chromosome breaks into two chromatids. Each chromatid is in one cell. Why does this happen?
What is the chromatid has enough information to reproduce the amount of DNA needed for a new cell.
500
The final part of the cycle, is the shortest and the most complex. What is this stage called?
What is MITOSIS (IPMAT)
500
what is the reason for the loss of Marine life in Paleozoic time period and also for the loss of the dinosaurs in the Mesozoic time period.
What is Mass Extinctions.