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Revised meiosis

QuestionAnswer
What is the term for when chromosomes exchange genetic material? crossing over
Term for any other cell but a reproductive cell (like a skin cell)? somatic cell
What are the 3 ways to get genetic variation through meiosis? -crossing over -independent assortment -random fertilization
What form of asexual reproduction do prokaryotic organisms do? binary fission
In humans the first 22 pairs are called what? autosomes
In what stage does independent assortment occur? metaphase I
What are the 3 reasons DNA is important? protein production, directs cell activity, determines traits
Term for a photo of chromosomes in a dividing cell, arranged by size, that can determine chromosomal abnormalities? karyotype
What is the term for meiosis in males? spermatogenesis
A reproductive cell is haploid or diploid? haploid
What are chromosomes/chromatin composed of? DNA and protein
What type of cell, and how many cells, do we get after telephase I? 2 cells, haploid
What are the two most important purposes of the process of meiosis? -to half the number of chromosomes -to create genetic variation
What are the 3 forms of asexual reproduction? -binary fission -fragmentation -budding
What is the term for when the two chromosomes (a pair) are close together? tetrad
Term for segment of DNA that codes for a particular protein? gene
In what stage in meiosis do sister chromatids line up along the equator? metaphase II
If a human has an XX for their sex chromosomes, are they male or female? female
A somatic cell is haploid or diploid? diploid
What is the term for meiosis in females? oogenesis
What is main disadvantage of asexual reproduction? no genetic variation
How many pairs of homologous chromosomes do humans have? 23 pairs (46 chromosomes)
In what stage does the tetrads line up in the middle? metaphase I
What type of cell, and how many cells, do we get after telephase II? 4 cells, haploid
If a human has an XY for their sex chromosomes, are they male or female? male
What is a general term for a reproductive cell? gamete
In what stage does crossing over occur? prophase I
In what stage do the tetrads move apart to opposite poles? anaphase I
In humans the 23rd pair is called what? sex chromosomes
Created by: thompsondk
 

 



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