Mitosis 1
During which step in interphase is DNA replicated?
The S phase.
If humans have 46 chromosomes, how many do we have after mitosis takes place?
46
What process results in genetically different offspring than their parents?
Meiosis
Define what a gamete is.
It is an egg or sperm cell that contains half of the genetic material needed to create a human.
What is the base pair rule?
DNA: A to T, C to G
RNA: A to U
Trade Request:
How does the genetic information in the daughter cells, at the end of mitosis, compare to the original parent cell?
It is identical.
Binary Fission is an asexual process similar to mitosis, what makes them so?
They both produce identically genetic offspring to the parent cell.
How many chromosomes will a cell have after undergoing meiotic cell division?
23
What kind of cells fuse to form a zygote during fertilization?
2 haploid cells
After DNA replication, what do you end up with?
Two DNA strands that are half old and half new, that are also identical to the original strand.
Why is mitosis necessary?
Growth and Repair.
What is a disadvantage of asexual reproduction?
There is no genetic variability.
Double Jeopardy:
Why is it essential that gametes have half the original number of chromosomes?
A sperm cell and egg cell must each contain 23 chromosomes so that when they fuse to form a zygote, they can develop into a functional human.
A rabbit somatic cell has 44 chromosomes, how many will it have at the end of meiosis?
Mandatory Generosity:
22
What type of bond links amino acids together?
A polypeptide bond.
All or Nothing:
During what phase of mitosis do chromosomes align in the middle of the cell?
Metaphase
During which phase do chromosomes begin to pull apart and away from the center of the cell?
Anaphase
Explain why sexual reproduction are essential for human survival?
It increases genetic variability in humans, allowing individuals to overcome potential obstacles.
Tax Man:
Why can crossing over be a good thing?
It leads to new combinations of genes that increase genetic variability.
Trade Request:
Why does DNA need RNA?
It can't leave the nucleus to communicate with the ribosome.
An error in mitosis that results in increased and uncontrolled cell division is known as what?
Cancer
Double Jeopardy:
How do stem cells become the specialized cells our bodies need after undergoing mitosis?
Through a process known as differentiation.
What is the result of meiosis 1?
2 haploid daughter cells
What is the result of meiosis 2?
4 haploid daughter cells
What must form during cytokinesis of a plant cell?
A cell plate.