By the end of prometaphase the centrosomes develop into ________at opposite
ends of the cell.
What is Spindle Poles
100
What two genetic materials are required for cell division?
What is DNA and two daughter cells
100
What are the four phases of Mitosis?
What is -prophase
-metaphase
-anaphase
-telophase
100
Four closely associated chromatids of homologous pairs.
What is a tetrad?
100
At what phase do homologous pairs separate?
What is anaphase 1
200
The _________is composed of microtubules and a variety of other proteins.
What is mitotic spindle
200
Each replicated chromosome consists of two _______which contain identical
copies of the chromosome’s DNA.
What is Sister Chromatids
200
Mitosis results in how many daughter cells ?
2
200
A process that produces recombinant chromosomes, which combines genes inherited from the two parents.
What is crossing over?
200
At what phase do the tetrads line up?
What is metaphase 1
300
The region where the strands connect shrinks to a narrow area called the______?
What is Centromere
300
As mitosis starts, the two centrosomes are located near the_______.
What is Nucleus
300
_______ occurs during interphase before nuclear division begins
What is DNA replication?
300
Chromosome pairs that possess genes for the same characteristics at corresponding loci
What are homologous pairs?
300
How many cells are formed by meiosis and are they haploid or diploid ?
What is 4; haploid
400
A cell’s genetic information, packaged as DNA, is called its_______?
What is Genome
400
In typical cell division by mitosis and meiosis, all of the following contribute to genetic variation except
A. Anaphase of Mitosis
B. Anaphase of Meiosis 1
C. Fertilization
D. Crossing Over
E. Random Union of Egg and Sperm
What is A.
400
What are the functions of Mitosis? (hint: there's 4)
What is -Reproduction
-Grow
-Repair
-Maintain Cell #
400
The X shaped, microscopically visible region representing homologous chromatids that have exchanged genetic material through crossing over during meiosis.
What is a chiasma?
400
When can crossing over occur?
What is prophase 1
500
Each sister chromatid has a_______ made of proteins and chromosomal DNA
located at the centromere.
What is Kinetochore
500
14. If a cell has 46 chromosomes at the beginning of mitosis, then at anaphase there would be a total of
A. 23 chromatids
B. 23 chromosomes
C. 46 chromosomes
D. 46 chromatids
E. 92 chromosomes
What is Answer: E
500
Images of chromosomes arranged in pairs starting with the longest chromosomes.
What is a karyotype?
500
A process in which the duplicated chromosomes pair with their homologues during Prophase 1
What is synapsis?
500
The process of cytokinesis in animal cells characterized by pinching the plasma membrane