Mitosis
These are separated during mitosis
Sister Chromatids
Meiosis is important for what type of reproduction?
Sexual
We would refer to something with the hh genotype as ___
Homozygous recessive
Aneuploidy means ____
The nuclear envelope dissolves during this step
Prometaphase
Between Meiosis I and Meiosis II, Meiosis has this many steps
8
If something is X-linked recessive, it is more likely to show up in ____
Males
Give an example of when Aneuploidy is not lethal
Down syndrome, Turners Syndrome
Cytokinesis occurs at what was formerly the _____
Metaphase Plate
Meiosis I separates? Meiosis II seperates?
Homologous chromosomes, sister chromaids
A full Punnett square for a dihybrid cross will have how many squares?
16
What type of alteration of a chromosome occurred here
MSONTRP
MSOTRP
Deletion
In plant cells, these are used to form the new cell plate
Vesicles
The site of crossing over is the ____
Chiasmata
Explain the difference between incomplete dominance and codominance using the example of the offspring between a flower with blue petals and a flower with red petals.
Incomplete Dominance- offspring will have purple petals
Codominance- offspring will have stripes/spots of blue and red on petals
This is the term for when homologous chromosomes do not separate properly during Meiosis
Non-disjunction of Chromosomes
What are the steps of mitosis (in order) AND a key change that happens in each step?
Prophase- chromatin condenses into chromosomes, mitotic spindles begin to form
Prometaphase- nuclear envelope disappears, mitotic spindles attach to kinetochores
Metaphase- Chromosomes line up at the Metaphase plate
Anaphase- Sister chromatids are pulled apart
Telophase- Nucleolus + Nuclear Envelope form in each new cell
What are the 3 types of genetic variation AND when do they occur?
Recombination- Prophase I
Independent Assortment- Metaphase I
Random Fertilization- post-reproduction
What is the genotypic ratio for a cross between TtmmxttMm
4 TtMm: 4 Ttmm: 4 ttMm: 4 ttmm
What are the 4 possible types of alteration of chromosome structures.
Deletion, Duplication, Inversion, Translocation