Genetics

4. relating to the origin of diverse individuals or kinds by descent from a single ancestral individual or kind
5. the genetic constitution of an individual organism
8. through his work on pea plants, discovered the fundamental laws of inheritance
11. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment
12. having two identical alleles of a particular gene
16. a grid that tells the probability and trait
18. determines if you’re a boy or girl
20. inheritance with two alleles of the same gene are expressed separately to different traits
22. one of the numbered chromosomes, numbered roughly in relation to their sizes
23. A genotypic ratio is a numerical comparison of the allele combinations
24. (mutt): the offspring of two plants or animals of different species or varieties, such as a mule (a hybrid of a donkey and a horse)
25. a chance of something
27. having two different alleles of a particular gene

1. the 23rd chromosome
2. the number and visual appearance of the chromosomes in an organism
3. a trait that is expressed whenever an allele for it is present
6. having more than one origin or source
7. In the nucleus of each cell, the DNA molecule is packaged into thread-like structures
9. ratio depicting the different genotypes of the offspring from a test cross
10. Same alleles
13. a mixture of proteins and phospholipids forming a whitish insulating sheath around many nerve fibers, increasing the speed at which impulses are conducted
14. a form of Gene interaction in which both alleles of a gene at a locus are partially expressed
15. forms of a gene that arise by mutation and are found at the same place on a chromosome
17. Refers to a trait that is expressed only when genotype is homozygous
19. If the alleles of a gene are different, one allele will be expressed
21. disease when you get high levels of saturated, very long chain fatty acids build in the nervous system and adrenal cortex
26. refers to the genetic background