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CSET Genetics And Evolution
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CSET Genetics And Evolution
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25 Questions

1. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti

2. Independent segregation of genes during the formation of gametes

3. Features that are superficially similar but have different modes of development

4. Organ no longer serves a function

5. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants

6. The study of the structures of different organisms - looking at homologous parts

7. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.

8. Recognize and cut DNA at specific sequences usually palindromes

9. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele

10. Three mRNA nucleotides that code for a specific amino acid

11. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.

12. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.

13. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)

14. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome

15. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.

16. Translation occurs in the...

17. Synonym for protein; chain of amino acids

18. The gradual changes in gene frequencies in a population due to random events

19. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.

20. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures

21. A type of protein molecule found in the chromosomes of eukaryotic cells but not prokaryotic cells

22. Process by which an organism is slowly turned to stone as the body is replaced by minerals.

23. Determined the concept of complementary base pairing

24. Copying the code from DNA onto mRNA

25. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids