Across
- 1. The diploid product of the union of haploid gametes in conception; a fertilized egg.
- 4. a linear sequence of nucleotides
- 6. A mutational loss of a nucleotide from a gene.
- 8. A cell containing only one set of chromosomes (n).
- 11. any factor, abiotic or biotic, that influences living organisms.
- 12. Replicated forms of a chromosome joined together by the centromere and eventually separated during mitosis or meiosis
- 16. A cell containing two sets of chromosomes (2n), one set inherited from each parent.
- 17. A mutation involving the addition of one or more nucleotide pairs to a gene.
- 18. A change in a gene at a single nucleotide pair.
Down
- 2. A haploid egg or sperm cell; unite during sexual reproduction to produce a diploid zygote.
- 3. A two-stage type of cell division in sexually reproducing organisms that results in gametes with half the chromosome number of the original cell.
- 5. 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.
- 7. The act or process of being altered or changed
- 9. 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.
- 10. A mutation occurring when the number of nucleotides inserted or deleted is not a multiple of 3, thus resulting in improper grouping into codons.
- 13. A genetic mutation of the cell causing rapid growth passing through the G0 phase.
- 14. A threadlike, gene-carrying structure found in the nucleus. Each one consists of one very long DNA molecule and associated proteins.
- 15. The reciprocal exchange of genetic material between nonsister chromatids during synapsis of meiosis
