Genetics

5. type of chromosomes that carry the same sequence of DNA
7. The various specific forms of a gene are alleles
8. type of cell division used to produce gametes
10. random change that occurs is a DNA sequence
14. the X and Y chromosomes
16. Heritable factor that consists of a length of DNA
17. a defect which occurs when sister chromatids are not seperated during anaphase
18. small extra DNA molecules that are commonly found in prokaryotes

1. a record of the chromosomes of an organism shown in homologous pairs of decreasing length
2. pair of homologous chromosomes formed into a tetrad
3. type of nuclei that contain one chromosome of each pair
4. the trisomy 21 defect
6. the specific karyogram for the observed organism
9. an act of homologous chromosomes exchanging genetic information during prophase 1 of meiosis
11. the whole of the genetic information of an organism
12. proteins found in chromatin that aids in supercoiling
13. the material that chromosomes are made of
15. type nuclei that contain pairs of homologous chromosomes