Biology

8. is the change in the frequency of an allele in a population due to random chance
9. the prevalence of dark-colored varieties of animals (especially moths) in industrial areas
10. the process by which a cell makes proteins using the genetic information carried in mRNA
14. gene expresses itself more strongly
17. the reduced genetic diversity which results when a population is descended from a small number of colonizing ancestors
18. is the oldest known bird, a bird-like dinosaur
20. the process by which a cell makes an RNA copy of a piece of DNA
23. informational flow from DNA to RNA
24. one of two or more alternative forms of a gene

1. only females, results when one of the X chromosomes (23 chromosome) is missing or partially missing
2. is used to predict the genotypes of a particular cross or breeding experiment
3. is a method of dating rocks and minerals using Uranium isotopes
4. 9:3:3:1 phenotypic ratio of a dihybrid cross
5. cell division in sexually reproducing organisms
6. coat colors is linked to the X chromosome, they are nearly always female
7. a structure that has lost most or all of their ancestral function in a given species
11. the first codon of mRNA transcript translated by a ribosome signaling the start
12. region of crossing over between 2 chromosomes
13. a cell that contains a single set of chromosomes
15. a large RNA-protein complex that catalyses the removal of introns
16. a person has an extra 21st chromosome
19. a recessive disorder where the blood does not clot properly
21. is the process through which populations of living organisms adapt and change
22. similar structures that evolved from a common ancestor