Reproduction
List one difference between asexual and sexual reproduction
number of parents, genetic variation, type of cell division
How many cells are made at the end of mitosis?
2 cells
How many gamete cells are made at the end of meiosis?
4 gametes
Which form of cell division results in genetic variation in daughter cells?
meiosis
During what stage of the cell cycle does DNA replicate?
S-phase
Which cell division process is used for asexual reproduction?
Mitosis
What does it mean to be a diploid cell?
Has same exact DNA as the parent cell
List 2 sources of genetic variation.
reproduction, crossing over, mutations, random assortment, nondisjunction
Which form of cell division results in half the amount of daughter cells in the daughter cells?
Meiosis
What is a homologous chromosome?
Same size, shape, and genes
What is formed from the combination of eggs and sperm during fertilization?
Zygotes
List 2 reasons an organism would use mitosis
Growth, Replace dead/damaged cells, asexual reproduction
What is it called when homologous chromosomes sort incorrectly during anaphase?
Nondisjunction
What types of cells are made during meiosis?
sperm and eggs (Gametes)
What is the difference between haploid and diploid?
Haploid is half and diploid is full
If a zygote has 46 chromosomes, how may chromosomes were in the sperm cell?
23
If a blood cell has 23 chromosomes, how many chromosomes would the daughter cells have after mitosis?
23
What increases genetic variation during prophase I by swapping genes on homologous chromosomes?
Crossing over
List 2 differences between meiosis and mitosis
rounds of pmat, amount of dna, number of cells made, type of reproduction
When nondisjunction occurs, chromosomes are pulled to the wrong side of the cell during anaphase. What can this cause in humans after the cells split?
Chromosomal conditions
Gametes
What process do bacteria and other prokaryotes use to divide and multiply?
Binary fission
If a parent cell has 46 chromosomes, how many chromosomes would the egg or sperm cells have after meiosis?
23
If a cat has 25 chromosomes in its gametes, how many chromosomes would be in its body cells?
50
If a cell split via cytokinesis before PMAT occurred, how would this affect the amount of DNA and organelles in the new cells?
The new cells would have the wrong number DNA and organelles