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What is 1 + 3?
Different form of same gene
Chromosomes that determine sex
2 parents give rise to offspring
All chromosomes besides sex chromosomes
Chromosomes of same type (appearance looks alike)
Body Cells, (2n), "pair"
Egg and sperm (sex cell)
A pair of chromosomes of the same type are called ______ chromosomes.
In ______ reproducing organisms, offspring get one chromosome from their mom and one from their dad.
Chromosomes have genes on them that will code for or determine an organism's ______.
Different forms of the same gene are called _______ (ex. Brown hair gene or blonde haired gene)
A name for a cell that has 2 copies of each type of chromosome in each cell would be called a ______.
Haploid cells that are used in sexual reproduction, like sperm and eggs are called _______.
Chromosomes in a nucleus of an organism that code are not used to determine the sex of an organism are called the _________.
The X and Y chromosomes in humans are called the ___________.
If a cell has 2 chromosomes, is it a gamete or a somatic cell?
[(xx)] Chromosomes only look like this before cell division, so how many times would the cells need to divide?
[(8)] haploid or diploid?
What is another name besides gametes for them?
If a goat has 60 chromosomes in a diploid cell, how many homologous chromosome pairs are there in a diploid cell?
If rice has 24 chromosomes in a diploid cell, how many chromosomes are in the haploid cell?
If a king crab has 104 chromosomes in a haploid cell, how many pairs of homologous chromosomes are in diploid cells?
If a bat has 22 pairs of homologous chromosomes in diploid cells, how many chromosomes are in diploid cells?
Dogs have 78 chromosomes in their diploid cells. How many chromosomes are in their haploid cells?
Horses have 32 chromosomes in their diploid cells. How many chromosomes are in their haploid cells?
Cats have 38 chromosomes in their diploid cells. How many chromosomes are in their haploid cells?
What is a karyotype?
A picture of all the chromosomes.
_________ is the process of making haploid sex cells.
The purpose of meiosis is to ______ chromosome number and create genetic ______.
If the diploid number of an organism is 20, how many will be present in a cell after meiosis?
Cells go through ___ rounds of division in meiosis. Cells double DNA ____ but divide ____.
2, once, twice
If a skin cell has 40 chromosomes, how many will a sperm have in the same organism?
What occurs before Meosis I but not Meiosis II?
What are 2 activities that a cell goes through in premeiotic interphase?
chromosomes duplicate, centrosomes double
What phase do chromosomes duplicate and centrosomes double?
What phase do chromosomes condense?
What phase do sister chromatids join with homologs in synapsis to form tetrads?
What phase do centrosomes migrate to opposite poles?
What phase is the longest phase of meiosis?
What phase do spindle fibers form?
What phase does the nuclear envelope and nuclei disintegrate?
What phase does the exchange of chromosome segments between homologous chromosome occur?
What phase does Crossing Over happen in between?
Prophase I and Metaphase I
What phase do tetrads line up?
What phase do spindle fibers from each pole are attached?
What phase are tetrads pulled apart?
What phase are sister chromatids pulled to either pole?
What phase does a nuclei reform around pairs of sister chromatids?
What phase does cytoplasm divide and make 2 daughter cells that are haploids but have 2 chromatids?
Double chromosomes that you get from your mom and dad are called __________-.
During prophase I what do chromosomes do?
What is the process of genes switching places on homologous chromosomes?
At the end of Anaphase I what is moved to opposite sides of the cell?
Pairs of sister chromatids
What do the nuclei reform around in Telophase I?
Pairs of sister chromatids
What phase do chromosomes not duplicate and preparations are made for Meiosis II?
What phase do pairs of sister chromatids have spindle fibers?
What phase do sister chromatids line up?
What phase do pairs of sister chromatids are pulled apart?
What phase makes 4 daughter cells with haploid number of chromosomes?
What are separated during Meoisis II?
2 haploid daughter cells of each type
How many daughter cells are made at the end of meiosis II?
How many cells are going through prophase II at a time?
During which phase do sister chromatids line up in the middle?
During which phase are sister chromatids pulled apart?