Genetics

3. shows the chromosomes of an organism in homologous pairs of decreasing length
4. ___________ chromosomes are those with the same shape, size and carry the same genes on the same locus
5. cells that are neither diploid or haploid
6. heritable factor that influences a specific characteristic
7. process in which homologous chromosomes come together
9. type of base substitution that causes sickle cell anemia
10. process in which chromosomes or sister chromatids fail to separate during meiosis
11. small circular extra DNA molecules found only in prokaryotes
13. diploid cell that is made after 2 gametes fuse
14. syndrome that s caused by trisomy of chromosome 21
16. insertion and deletion are types of _______ mutations
18. various types of genes
19. cells with haploid number of chromosomes

1. meiosis phase in which homologous chromosomes are pulled to the opposite poles
2. the entire base sequence of human genes was sequenced in the ________________
4. specie that contains between 20000 and 25000 genes
8. karyotype test for nondisjunction disorder with lower risk
12. fixed position on a chromosome where a particular gene is located
15. process in which gene segments of one homologous chromosome are exchanged with the same genes of the other one
17. proteins found in eukaryotic cell that package the DNA into nucleosomes