Terminology
A qualitative trait that is defined as either having it or not having it
Discontinuous Variation
Prokaryotes undergo this process when dividing
Fission
When sister chromatids separate at their centromeres. One group of chromosomes move towards each pole of the cell.
Anaphase
What type of cells are created at the end of meiosis
Haploid cells
What is the central dogma of molecular biology?
DNA - RNA - Proteins
Normal phenotype
Wild type
How many steps are in prophase I?
5
During which stage of meiosis do sister chromatids begin to move toward the poles?
Anaphase I
How many cells will be created at the end of meiosis
Four
What are the three great milestones in genetics?
Mendel, Watson & Crick, Human Genome Project
A quantitative trait that is defined by a spectrum or continuum
Crossing over occurs during which stage of meiosis?
Prophase I
What are the steps in mitosis?
Prophase, Metaphase, Anaphase, Telophase
Which event during meiosis leads to a reduction in chromosome number from 2n to n?
When homologous chromosomes travel to opposite sides of the cell
Alternative form of a gene encoding proteins with altered amino acid sequence
Alleles
A structure that separates the duplicated chromosomes during anaphase
Mitotic spindle
A cell has 12 chromosomes. How many chromosomes will each daughter cell have?
12 chromosomes
Name the components of the mitotic spindle apparatus.
Inner plate, outer plate, fibrous corona, microtubule,
The ____ is the site of attachment of spindle fibers to sister chromatids during mitosis
kinetochore
Multiple alleles of single gene
Polymorphism
Body cells
Somatic cells
What are the 5 subphases in prophase I?
Leptonema, zygonema, pachynema, diplonema, diakinesis
At which stage in meiosis does independent assortment of alleles occur (meiosis)?
Anaphase I
A mouse has a mutation in which its sister chromatids are unable to separate during cell division. What phase of mitosis should researchers target, in order to alleviate the condition using drug therapy?
Anaphase
English chemist who produced X-ray crystallographer whose work was used by Watson and Crick
Rosalind Franklin