The process that results in new cells with genetic material that is identical to the original cell
What is mitosis
100
The number of chromosomes in meiosis is _______ the original amount of chromosomes
What is half?
100
When a cell has TWO sets of chromosomes, it is called:
What is diploid?
100
A cell is called ______ because it has only one set of chromosomes.
What is haploid?
100
the phase when the chromosomes line up in the middle of the cell
What is metaphase?
200
The number of phases in mitosis.
What is four?
200
The number of cycles that meiosis goes through.
What is two?
200
This holds two sister chromatids together.
What are centromere?
200
The 4 gametes at the end of meiosis have different combinations of genes, meaning they are ________________
What is genetically different?
200
Fertilization is when _________________________.
When the sperm fuses (enters) the egg and they join to form the zygote.
300
Each cell has this amount of chromosomes at the end of mitosis
46 chromosomes
300
The process in meiosis that guarantees more genetic variation the chromosomes
What is crossing over?
300
The number of centromeres also means the number of ___________________
What is a chromosomes?
300
How are identical twins made?
What is one sperm that fertilizes the egg, and the new zygote cell splits into two
300
Different versions of a certain gene
What are alleles?
400
This is the location of your body where mitosis takes place
What is your body cells, like heart or skin cells?
400
When does crossing over occur?
Meiosis I
400
the name of reproductive cells.
Name the males and females.
What are gametes?
400
Chromosome #4 from dad and Chromosome #4 from mom are called _______________,
What are homologous chromosomes?
400
A. If the alleles of chromosomes are Bb, we call these alleles __________________.
B. If the alleles of chromosomes are bb, we call these alleles __________________.
What is A. heterozygous and B.homozygous?
500
The purpose of mitosis
What is the replacement of damaged cells or growth?
500
The gamete cells at the end of meiosis contain ______ chromosomes, meaning the cell is _________
23, haploid
500
Fraternal twins are made from __________________
What are 2 different sperm and 2 different eggs?
500
What happens during interphase?
What is DNA replication, cell growth?
500
A. What splits during Meiosis I?
B. What splits during Meiosis II?
What is
A. homologous chromosomes
B. sister chromatids