Mitosis/Cell Cycle
What kind of cells undergo mitosis?
Somatic
A cat's phenotype can be known how?
A gamete produced by only females is called what?
An egg
Homozygous Dominant
DD
Define the independent and dependent variable.
Independent: What's being manipulated/changed.
Dependent: What's measured.
How many rounds of division are there?
1 round of division that creates 2 identical daughter cells.
Define phenotype versus genotype.
Genotype: The letter combinations that correlate with your alleles.
Phenotype: The physical appearance or trait.
What's formed as a result of meiosis?
4 genetically different cells.
Heterozygous
Bb - hybrid
How do I find the 4 pairs of letters (genotype) during a dihybrid cross?
FOIL
Where does a cell spend most of its life?
Not mitosis, but interphase
What do the boxes of a punnett square show us?
Genotypes
What's the difference between Anaphase I and Anaphase II?
Homologous chromosomes separate during Ana I, while sister chromatids separate during Ana II.
A heterozygous organism can also be described as this.
Hybrid
Where are linked genes located?
On the same chromosome.
What happens during M phase? Be specific with the steps!
Cell division: PMAT and Cytokinesis
What's the law of independent assortment say?
In meiosis homologous chromosomes separate regardless of the type of trait
Mendel's Law of Segregation states that during meiosis, the factors that control each trait separate, and only _____ from each pair is/are passed to the offspring.
One.
Diploid versus Haploid
A cell that contains 2 sets of each homologous pair. 46 chromosomes (diploid)
A cell that contains only 1 member of a homologous pair. 23 chromosomes (haploid)
Which of the following is the correct order for the stages of development after fertilization?
Zygote, embryo, fetus
Describe 3 differences between mitosis and meiosis.
Meiosis: Divides gametes, 2 rounds of division, creates genetically different cells.
If two heterozygous individuals are crossed, what is the phenotype ratio?
3:1
How many chromosomes do gamete cells have?
They're haploid (hap = half) so 23.
Alternate forms of a gene (which code for the same trait) are called...
Alleles
Brown (B) feathers is dominant to white (b) feathers. A heterozygous bird is crossed with a bird with white feathers. Draw a Punnett square and tell me the genotypes and phenotype ratios.
Bb x bb
50/50 brown/white
50/50 heterozygous brown/homozygous recessive