Show:
Reproduction
Mitosis/Meiosis
Cell division phases
Cells
Stem cell research
100
The process that increases genetic diversity within a population is known as
Sexual reproduction
100
How many cell divisions happen during mitosis and meiosis? (2 answers). How many times does DNA replicate during mitosis and meiosis? (2 answers)
Cell divisions= mitosis (1) meiosis (2) DNA replication= both only replicate one time
100
During this phase, the chromatids line up in the center of cell.
Metaphase
100
Programmed cell death is known as _______________.
Apoptosis
100
What is a totipotent cell?
Cell that can develop into any type of cell in the body
200
Which of the following is NOT and advantage of asexual reproduction? a.) Simple and efficient b.) Produces a large number of offspring quickly c.) Increases genetic diversity d.) Requires one parent
B
200
Suppose that an organism has the diploid number 2N=8. How many chromosomes will the gametes have?
4
200
During these two phases, the nuclear envelopes reforms and the cytoplasm divides.
Telophase and cytokinesis
200
A disorder in which body cells lose the ability to control division is called _______________.
Cancer
200
Why is stem cell research contriversial?
Arguements for and against it both involve ethical issues of life and death
300
Asexual reproduction produces genetically _______________ offspring from a single parent.
Identical
300
What is the end result of mitosis and meiosis? Must have both answers for credit
Mitosis= 2 diploid cells. Meiosis= 4 haploid cells
300
During this phase, sister chromatids are pulled to the poles of the cell by spindle fibers
Anaphase
300
True or False: Cells continue to divide when they come in contact with other cells.
False: stop dividing
300
Multipotent cells are also known as_____________________
Adult stem cells
400
sexual reproduction produces genetically _______________ offspring.
Different
400
If a cell has 12 chromosomes, how many chromosomes will each of its daughter cells have after mitosis and cytokinesis?
12
400
During this phase, the chromosomes condense and the nuclear membrane begins to break down.
Prophase
400
True or False: As a cell's size increases, its amount of DNA also increases.
False: stays the same
400
True or False: Most techniques for harvesting embryonic stem cells cause the destruction of the embryo
True
500
True or False: Asexual reproduction makes for more genetic diversity
False: sexual
500
In a plant cell, what forms midway between the divided nuclei during cytokineses
Cell plate
500
List in order the phases of mitosis
PMAT----- prophase, metaphase, anaphase, telophase
500
Cancer developes masses known as tumors. What are the two types of cancer? which is cancerous and which is noncancerous? (must have all parts of question answered for credit)
Benign: noncancerous & Malignant: cancerous
500
What is the name of a hollow ball of cells with a cluster of cells inside known as the inner cell mass?
Blastocyst