Cells

2. A cell containing only one set of chromosomes (n).
4. The reciprocal exchange of genetic material between nonsister chromatids during synapsis of meiosis
5. The act or process of being altered or changed
8. An aberration in chromosome structure resulting from an error in meiosis or from mutagens; reattachment in a reverse orientation of a chromosomal fragment to the chromosome from which the fragment originated.
9. A cell containing two sets of chromosomes (2n), one set inherited from each parent.
10. A type of reproduction in which two parents give rise to offspring that have unique combinations of genes inherited from the gametes of the two parents.
12. Replicated forms of a chromosome joined together by the centromere and eventually separated during mitosis or meiosis
15. A mutation involving the addition of one or more nucleotide pairs to a gene.
17. A genetic mutation of the cell causing rapid growth passing through the G0 phase.
18. A change in a gene at a single nucleotide pair.

1. A threadlike, gene-carrying structure found in the nucleus. Each one consists of one very long DNA molecule and associated proteins.
3. A mutation occurring when the number of nucleotides inserted or deleted is not a multiple of 3, thus resulting in improper grouping into codons.
6. The diploid product of the union of haploid gametes in conception; a fertilized egg.
7. any factor, abiotic or biotic, that influences living organisms.
11. A two-stage type of cell division in sexually reproducing organisms that results in gametes with half the chromosome number of the original cell.
13. a linear sequence of nucleotides
14. A mutational loss of a nucleotide from a gene.
16. A haploid egg or sperm cell; unite during sexual reproduction to produce a diploid zygote.